diff --git a/app/svganim/strokes.py b/app/svganim/strokes.py
index c01ca1b..c51829e 100644
--- a/app/svganim/strokes.py
+++ b/app/svganim/strokes.py
@@ -727,6 +727,9 @@ class Tag(NodeMixin):
 
     def __repr__(self):
         return f"<svganim.strokes.Tag {self.id}>"
+
+    def __str__(self):
+        return RenderTree(self).by_attr('name')
     
     def get_color(self):
         if self.color is None and self.parent is not None:
@@ -741,12 +744,18 @@ class Tag(NodeMixin):
             if t.id == tag_id:
                 return t
         return None
+    
+    def toJson(self) -> str:
+        return JsonExporter(indent=2).export(self)
+
+def loadTagFromJson(string) -> Tag:
+    tree: Tag = JsonImporter(DictImporter(Tag)).import_(string)
+    return tree
 
 def getRootTag(file = 'www/tags.json') -> Tag:
     with open(file, 'r') as fp:
         tree: Tag = JsonImporter(DictImporter(Tag)).read(fp)
     
-    # print(tree.descendants)
     return tree
 
     # print(RenderTree(tree))
diff --git a/app/templates/index.html b/app/templates/index.html
index 18f8c7a..429bf93 100644
--- a/app/templates/index.html
+++ b/app/templates/index.html
@@ -17,7 +17,7 @@
         }
 
         #tags li {
-
+            line-height: 1.5;
             list-style: none;
         }
 
@@ -33,20 +33,31 @@
 
         #tags li>div,
         #tags li.add-tag {
-            cursor: pointer
+            cursor: pointer;
         }
 
         #tags .tag-id-root>div {
             display: none;
         }
 
-        #tags li:hover>ul>li.add-tag {
+        /* #tags li:hover>ul>li.add-tag {
             visibility: visible;
             ;
+        } */
+        #tags li.selected > ul>li.add-tag {
+            display: block;
+        }
+
+        #tags > li > ul >li.add-tag {
+            display: block;
+            ;
         }
 
+        
+        
+
         #tags .add-tag {
-            visibility: hidden;
+            display: none;
             ;
             color: lightgray;
             font-size: 80%;
@@ -59,9 +70,30 @@
             padding: 0;
             border: solid 1px black;
             border-radius: 2px;
-            vertical-align: bottom;
+            vertical-align: middle;
             margin-right: 10px;
         }
+        #tags li:hover > div > input.rm-tag{
+            display: inline-block;
+        }
+        #tags  li div{
+            position:relative
+        }
+        #tags input.rm-tag:hover{
+            color: red;
+            transform: rotate(20deg);
+        }
+        #tags input.rm-tag{
+            /* display: none; */
+            position:absolute;
+            right:0;
+            top:0;
+            padding:0;
+            background: none;
+            border: none;
+            color: white;
+            cursor:pointer;
+        }
 
         #tags .selected>div {
             background: lightblue
diff --git a/app/webserver.py b/app/webserver.py
index 0d5c4b3..8644638 100644
--- a/app/webserver.py
+++ b/app/webserver.py
@@ -1,6 +1,7 @@
 import json
 import logging
 import os
+import shutil
 import tornado.ioloop
 import tornado.web
 import tornado.websocket
@@ -519,7 +520,34 @@ class TagsHandler(tornado.web.RequestHandler):
         self.index = index
     
     def get(self):
-        raise Exception('todo')
+        self.set_header("Content-Type", "application/json")
+        with open('www/tags.json', 'r') as fp:
+            # TODO: enrich with counts
+            self.write(fp.read())
+
+    def put(self):
+        # data = json.loads(self.request.body)
+        tree = svganim.strokes.loadTagFromJson(self.request.body)
+        logger.info(f"New tag tree:\n{tree}")
+        newTagsContent = tree.toJson()
+        # save at minute resolution
+        now = datetime.datetime.utcnow().isoformat(timespec='minutes')
+
+        backup_dir = os.path.join(self.config.storage, 'tag_versions')
+        if not os.path.exists(backup_dir):
+            logger.warning(f"Creating tags backupdir {backup_dir}")
+            os.mkdir(backup_dir)
+        
+        bakfile = os.path.join(backup_dir, f'tags.{now}.json')
+        logger.info(f"Creating tags backup {bakfile}" )
+        shutil.copyfile('www/tags.json', bakfile)
+
+        with open('www/tags.json', 'w') as fp:
+            fp.write(newTagsContent)
+
+        self.set_status(204)
+        # print()
+        
 
 class IndexHandler(tornado.web.RequestHandler):
     """Get annotation as svg"""
@@ -603,6 +631,9 @@ class Server:
                 (r"/index", IndexHandler,
                  {"config": self.config, "index": self.index}),
 
+                (r"/tags.json", TagsHandler,
+                 {"config": self.config, "index": self.index}),
+
                 (r"/(.*)", StaticFileWithHeaderHandler,
                  {"path": self.web_root, 'default_filename': 'index.html'}),
             ],
diff --git a/app/www/annotations.js b/app/www/annotations.js
index da7b172..034b9cd 100644
--- a/app/www/annotations.js
+++ b/app/www/annotations.js
@@ -6,6 +6,8 @@ class AnnotationManager {
         this.tagsEl = this.rootEl.querySelector('#tags');
         this.annotationsEl = this.rootEl.querySelector('#annotations');
 
+        this.selectedAnnotations = [];
+        this.selectedTag = null;
         this.loadTags(tagsUrl);
     }
 
@@ -33,6 +35,9 @@ class AnnotationManager {
             tagEl.addEventListener('click', (ev) => {
                 this.selectTag(tag);
             })
+            tagEl.addEventListener('dblclick', (ev) => {
+                this.renameTag(tag);
+            })
 
             const colorEl = document.createElement('input');
             colorEl.type = 'color';
@@ -42,6 +47,16 @@ class AnnotationManager {
             });
             tagEl.prepend(colorEl)
 
+            const rmEl = document.createElement('input');
+            rmEl.type = 'button';
+            rmEl.classList.add('rm-tag');
+            rmEl.value = '🗑';
+            rmEl.addEventListener('click', (ev) => {
+                ev.stopPropagation();
+                this.removeTag(tag);
+            });
+            tagEl.appendChild(rmEl)
+
             tagLiEl.classList.add('tag-id-' + tag.id);
             tagLiEl.appendChild(tagEl);
 
@@ -70,14 +85,16 @@ class AnnotationManager {
 
     selectTag(tag) {
         this.clearSelectedTag();
-
+        this.selectedTag  = tag;
         tag.menuLiEl.classList.add('selected');
         this.loadAnnotationsForTag(tag)
     }
 
     clearSelectedTag() {
+        this.selectedTag = null;
         const selected = this.tagsEl.querySelectorAll('.selected');
         selected.forEach((s) => s.classList.remove('selected'));
+        this.resetSelectedAnnotations()
         //TODO empty annotationEl
         this.annotationsEl.innerHTML = "";
     }
@@ -112,14 +129,33 @@ class AnnotationManager {
     buildAnnotationList() {
         this.annotationsEl.innerHTML = "";
 
+        this.actionsEl = document.createElement('div');
+        this.actionsEl.classList.add('annotations-actions')
+
+        this.buildAnnotationActions();
+
+        this.annotationsEl.appendChild(this.actionsEl);
+
+
         const ulEl = document.createElement('ul');
         this.annotations.forEach((annotation, idx) => {
             const liEl = document.createElement('li');
             const imgEl = document.createElement('img');
             const playerEl = document.createElement('div');
-            const infoEl = document.createElement('div');
+            const infoEl = document.createElement('span');
             infoEl.classList.add('annotation-info');
 
+            const selectEl = document.createElement('input');
+            selectEl.type = 'checkbox';
+            selectEl.id = 'select-'+annotation.id_hash;
+            selectEl.addEventListener('change', (ev) => {
+                if (ev.target.checked) {
+                    this.addAnnotationToSelection(annotation);
+                } else {
+                    this.removeAnnotationFromSelection(annotation);
+                }
+            })
+
             const tag = this.rootTag.find_by_id(annotation.tag);
             console.log(tag)
 
@@ -140,6 +176,7 @@ class AnnotationManager {
 
             liEl.appendChild(imgEl);
             liEl.appendChild(playerEl);
+            liEl.appendChild(selectEl);
             liEl.appendChild(infoEl);
             ulEl.appendChild(liEl);
 
@@ -149,6 +186,76 @@ class AnnotationManager {
 
     }
 
+    resetSelectedAnnotations() {
+        this.selectedAnnotations = [];
+
+        this.annotationsEl.querySelectorAll("li input[type='checkbox']").forEach((box) => box.checked = false);
+        this.buildAnnotationActions()
+    }
+
+    addAnnotationToSelection(annotation) {
+        if (this.selectedAnnotations.indexOf(annotation) === -1){
+            this.selectedAnnotations.push(annotation);
+        }
+        this.annotationsEl.querySelector('#select-'+annotation.id_hash).checked = true;
+        this.buildAnnotationActions()
+    }
+    removeAnnotationFromSelection(annotation) {
+        if (this.selectedAnnotations.indexOf(annotation) !== -1){
+            this.selectedAnnotations.splice(this.selectedAnnotations.indexOf(annotation), 1)
+        }
+        this.annotationsEl.querySelector('#select-'+annotation.id_hash).checked = true;
+        this.buildAnnotationActions()
+        
+    }
+    
+    buildAnnotationActions() {
+        if(!this.actionsEl || !this.annotations.length) return
+        this.actionsEl.innerHTML = "";
+
+        const selectAllLabelEl = document.createElement('label');
+        selectAllLabelEl.innerText = `Select all`
+        const selectAllEl = document.createElement('input');
+        selectAllEl.type = 'checkbox';
+        selectAllEl.checked = this.annotations.length === this.selectedAnnotations.length;
+        // selectAllEl.innerText = `Select all ${this.annotations.length} items`;
+        selectAllEl.addEventListener('change', (ev) => {
+            if(ev.target.checked) {
+                this.annotations.forEach((a) => this.addAnnotationToSelection(a));
+            } else {
+                this.resetSelectedAnnotations();
+            }
+        });
+
+        selectAllLabelEl.appendChild(selectAllEl)
+
+        this.actionsEl.appendChild(selectAllLabelEl)
+
+        if(!this.selectedAnnotations.length) return;
+
+        const moveLabelEl = document.createElement('label');
+        moveLabelEl.innerText = `Change tag for ${this.selectedAnnotations.length} items`
+        const moveSelectEl = document.createElement('select');
+        this.rootTag.descendants().forEach((tag, i) => {
+            const tagEl = document.createElement('option');
+            tagEl.value = tag.id;
+            if(tag.id == this.selectedTag.id){
+                tagEl.selected = true;
+            }
+            tagEl.innerHTML = tag.get_indented_name();
+            moveSelectEl.appendChild(tagEl);
+        });
+        moveSelectEl.addEventListener('change', (ev) => {
+            const tag = this.rootTag.find_by_id(ev.target.value);
+            console.log(tag);
+            this.moveSelectedAnnotations(tag);
+        })
+        moveLabelEl.appendChild(moveSelectEl)
+
+
+        this.actionsEl.appendChild(moveLabelEl)
+    }
+
     renameTag(tag) {
         // TODO: add button for this
         const name = prompt(`Rename tag '${tag.get_name()}':`);
@@ -156,15 +263,25 @@ class AnnotationManager {
         tag.name = name;
 
         this.saveTags();
+        this.buildTagList();
     }
 
     removeTag(tag) {
+        if (!confirm(`Do you want to delete ${tag.get_name()}`)) {
+            return false;
+        }
         // TODO: add button for this
         const request = new Request("/tags/" + tag.id);
         return fetch(request)
-            .then(response => response.json())
+            .then(response => {
+                if (response.status == 404) {
+                    return [] // not existing tag surely has no annotations
+                } else {
+                    return response.json()
+                }
+            })
             .then(annotations => {
-                if(annotations.length) {
+                if (annotations.length) {
                     alert(`Cannot remove '${tag.get_name()}', as it is used for ${annotations.length} annotations.`)
                 } else {
                     // TODO: remove tag
@@ -172,8 +289,9 @@ class AnnotationManager {
                     tag.parent = null;
 
                     this.saveTags();
+                    this.buildTagList();
                 }
-            });
+            })
     }
 
     setTagColor(tag, color) {
@@ -183,15 +301,22 @@ class AnnotationManager {
         this.saveTags();
     }
 
-    moveSelectedAnnotations(newTag) {
+    moveSelectedAnnotations(tag) {
         // TODO: add button for this
-        throw new Error("Not implemented");
+        alert(`This doesn't work yet! (move to tag ${tag.get_name()})`)
     }
 
-    saveTags() {
+    async saveTags() {
         const json = this.rootTag.export();
-        // TODO: save to remote
         console.log('save', json)
+        const response = await fetch('/tags.json', {
+            method: 'PUT',
+            headers: {
+                'Content-Type': 'application/json'
+            },
+            body: json
+        }).catch((e) => alert('Something went wrong saving the tags'));
+
     }
 }
 
@@ -243,14 +368,19 @@ class Tag {
     }
 
     get_name() {
-        if (this.hasOwnProperty('name')) {
+        if (this.hasOwnProperty('name') && this.name !== null) {
             return this.name;
         }
         return this.id;
     }
 
+    get_indented_name() {
+        const name = this.get_name();
+        return '&nbsp;'.repeat((this.depth() - 1) * 2) + '- ' + name
+    }
+
     get_color() {
-        if (this.hasOwnProperty('color')) {
+        if (this.hasOwnProperty('color') && this.color !== null) {
             return this.color;
         }
         if (this.parent !== null) {
diff --git a/app/www/tags.json b/app/www/tags.json
index 98452c1..e49ae52 100644
--- a/app/www/tags.json
+++ b/app/www/tags.json
@@ -1,116 +1,172 @@
 {
-    "id": "root",
-    "children": [
+  "id": "root",
+  "name": "root",
+  "color": null,
+  "description": "",
+  "children": [
+    {
+      "id": "human-machine",
+      "name": "Human/machine Entanglements (Appearance/disappearance)",
+      "color": "#ffa348",
+      "description": "",
+      "children": [
         {
-            "id": "human-machine",
-            "name": "Human/machine Entanglements (Appearance/disappearance)",
-            "color": "orange",
-            "children": [
-                {
-                    "id": "vision",
-                    "name": "Vision",
-                    "color": "orange"
-                },
-                {
-                    "id": "sound"
-                },
-                {
-                    "id": "behaviour"
-                },
-                {
-                    "id": "other-senses",
-                    "name": "Other senses"
-                }
-            ]
+          "id": "vision",
+          "name": "Vision",
+          "color": null,
+          "description": ""
         },
         {
-            "id": "tensions",
-            "name": "Tensions, contestations & problems",
-            "description": "Which problems are identified?, when do they become problems?",
-            "color": "gray"
+          "id": "sound",
+          "name": "sound",
+          "color": null,
+          "description": ""
         },
         {
-            "id": "security",
-            "color": "blue",
-            "name": "Security & types of data",
-            "children": [
-                {
-                    "id": "definitions",
-                    "description": "e.g. domain knowledge"
-                },
-                {
-                    "id": "input",
-                    "description": "e.g. fake data"
-                }
-            ]
+          "id": "behaviour",
+          "name": "behaviour",
+          "color": null,
+          "description": ""
         },
         {
-            "id": "actants",
-            "name": "Actants in relation",
-            "color": "pink",
-            "children": [
-                {
-                    "id": "algorithm"
-                },
-                {
-                    "id": "technologies"
-                },
-                {
-                    "id": "frt"
-                },
-                {
-                    "id": "cameras",
-                    "name": "CCTV & camera's"
-                },
-                {
-                    "id": "entities",
-                    "name": "Entities: people, institutions etc."
-                },
-                {
-                    "id": "positioning",
-                    "name": "Positioning",
-                    "description": "the positioning of a field/person/oneself in relation to others"
-                },
-                {
-                    "id": "inside-outside"
-                },
-                {
-                    "id": "public-private"
-                }
-            ]
-        },
-        {
-            "id": "consequences",
-            "color": "green",
-            "children": [
-                {
-                    "id": "effects"
-                },
-                {
-                    "id": "future-imaginaries"
-                },
-                {
-                    "id": "speculations",
-                    "description": "what is & what will/can be done."
-                },
-                {
-                    "id": "innovations"
-                }
-            ]
-        },
-        {
-            "id": "hesitation",
-            "name": "Hesitations & corrections",
-            "color": "yellow"
-        },
-        {
-            "id": "skip",
-            "color": "black"
-        },
-        {
-            "id": "todo",
-            "name": "to do / interesting",
-            "color": "red"
+          "id": "other-senses",
+          "name": "Other senses",
+          "color": null,
+          "description": ""
         }
-    ]
+      ]
+    },
+    {
+      "id": "tensions",
+      "name": "Tensions, contestations & problems",
+      "color": "#77767b",
+      "description": "Which problems are identified?, when do they become problems?"
+    },
+    {
+      "id": "security",
+      "name": "Security & types of data",
+      "color": "#3584e4",
+      "description": "",
+      "children": [
+        {
+          "id": "definitions",
+          "name": "definitions",
+          "color": null,
+          "description": "e.g. domain knowledge"
+        },
+        {
+          "id": "input",
+          "name": "input",
+          "color": null,
+          "description": "e.g. fake data"
+        }
+      ]
+    },
+    {
+      "id": "actants",
+      "name": "Actants in relation",
+      "color": "#fa08ff",
+      "description": "",
+      "children": [
+        {
+          "id": "algorithm",
+          "name": "algorithm",
+          "color": null,
+          "description": ""
+        },
+        {
+          "id": "technologies",
+          "name": "technologies",
+          "color": null,
+          "description": ""
+        },
+        {
+          "id": "frt",
+          "name": "frt",
+          "color": null,
+          "description": ""
+        },
+        {
+          "id": "cameras",
+          "name": "CCTV & camera's",
+          "color": null,
+          "description": ""
+        },
+        {
+          "id": "entities",
+          "name": "Entities: people, institutions etc.",
+          "color": null,
+          "description": ""
+        },
+        {
+          "id": "positioning",
+          "name": "Positioning",
+          "color": null,
+          "description": "the positioning of a field/person/oneself in relation to others"
+        },
+        {
+          "id": "inside-outside",
+          "name": "inside-outside",
+          "color": null,
+          "description": ""
+        },
+        {
+          "id": "public-private",
+          "name": "public-private",
+          "color": null,
+          "description": ""
+        }
+      ]
+    },
+    {
+      "id": "consequences",
+      "name": "consequences",
+      "color": "#0add32",
+      "description": "",
+      "children": [
+        {
+          "id": "effects",
+          "name": "effects",
+          "color": null,
+          "description": ""
+        },
+        {
+          "id": "future-imaginaries",
+          "name": "future-imaginaries",
+          "color": null,
+          "description": ""
+        },
+        {
+          "id": "speculations",
+          "name": "speculations",
+          "color": null,
+          "description": "what is & what will/can be done."
+        },
+        {
+          "id": "innovations",
+          "name": "innovations",
+          "color": null,
+          "description": ""
+        }
+      ]
+    },
+    {
+      "id": "hesitation",
+      "name": "Hesitations & corrections",
+      "color": "#f8e45c",
+      "description": ""
+    },
+    {
+      "id": "skip",
+      "name": "skip",
+      "color": null,
+      "description": ""
+    },
+    {
+      "id": "todo",
+      "name": "to do / interesting",
+      "color": "#ff0000",
+      "description": ""
+    }
+  ]
 }
\ No newline at end of file