# Features
Mode
The editor can be set into a read-only mode, by changing the value of the Config#mode property. \
\
Following are types of mode:\
1\. read\
2\. edit\
3\. review\
\
\&#xNAN;**- read**\
The read mode is a feature within the editor that allows users to see the editor. But you cannot edit it.\
Here’s the configuration:
```
"config": {
mode: 'read',
}
```
\
In the above screenshot, you can see all the contents but can not perform any actions on the editor.\
\
**- edit**\
All the fields will be enabled to edit for the collection creator.\
Here’s the configuration:
```
"config": {
mode: 'edit',
}
```
\ 
\
\
**- review**\
It’s similar to read mode only. but here users can perform some actions such as publish, reject. \
Here’s the configuration:
```
"config": {
mode: 'review',
}
```
\
\
But here you define which fields of a form can be editable for a specific `mode` with limited editing rights, leaving the rest of the fields non-editable to them. \
\
\- **editableFields**\
Its object for different types of mode based on which some fields get enabled.\
Here is the sample configuration for review mode:
```
"config": {
mode: 'review',
editableFields: {
"review": ["title" ]
}
}
```
\
(Note: In the above case `editableFields.review: ['title']` so only the instruction field is enabled for reviewer while reviewing the collection)
Media Upload Config
Media Config sets the max size limit for images to be uploaded in the collection editor and the type of images.\
Here is the configuration:
```
"config": {
assetConfig: {
"image": {
"size": 1,
"sizeType": "MB",
"accepted": "png, jpeg"
}
}
}
```
Organize TOC
The maximum number of levels in the collection has to be defined using the `maxDepth` property. This has to be updated in the object metadata of the primary category definition under hierarchy.\
`maxDepth` defines the level of collection i.e at which level content is to be linked. If `maxDepth` is set as 0, `Add from library` button gets enabled at the root node.
```
"config": {
children: {
"Content": [
"Explanation Content",
"Learning Resource",
"eTextbook",
"Teacher Resource",
"Course Assessment"
],
"QuestionSet": [
"Practice Question Set"
]
}
}
}
```
If the `maxDepth` is set as 1, we need to define `hierarchy` object also.\
Here is the default value of hierarchy we are using, you can change the name of level and children also.\
Here is the configuration:
```
"config": {
"hierarchy": {
"level1": {
"name": "Textbook Unit",
"type": "Unit",
"mimeType": "application/vnd.ekstep.content-collection",
"contentType": "TextBookUnit",
"primaryCategory": "Textbook Unit",
"iconClass": "fa fa-folder-o",
"children": {
"Content": [
"Explanation Content",
"Learning Resource",
"eTextbook",
"Teacher Resource",
"Course Assessment"
],
"QuestionSet": []
}
}
}
}
```
***(Note: If you add more depth you need to add more levels in the hierarchy.)***\
Collaboration
This feature allow us to share the collection with other users so they can contribure back to the same collection. To enables the add collaborator option in the collection editor. With which creator can as select the collaborate to contribute to the same collection.\
Here is the configuration:
```
"config": {
showAddCollaborator: true,
}
```
Content policy URL
It defines where should the content policy link should be redirected. This popup will get appear on click of `submit for review` button.\
Here is the configuration:
```
"config": {
contentPolicyUrl: "/term-of-use.html"
}
```
Generate/Link DIALCodes
When "generateDIALCodes" is set to `yes` it enables the add dialcode option in the collection editor. With which the creator can generate and link to the same collection.\
`generateDIALCodes: yes/no`
\
\
Following are the validations for generateDIALCodes\*\*:\*\*\
\*\*\*\*\
**1.** **dialcodeMaxLength**\
The `dialcodeMaxLength` defines the maximum number of dial-codes to be generated. This value must be less than or equal to the value of the `dialcodeMaxLength`\
`otherwise, it'll throw an error message as:\` \
The default value is `250`\
\
**2**.**dialcodeMinLength**\
\*\*\*\*The `dialcodeMinLength` defines the minimum number of dial-codes to be generated. This value must be greater than or equal to the value of the `dialcodeMinLength`\
\`\`otherwise, it'll throw an error message as:\
\
The default value is `2`
icon
This defines the icon which comes in the node and levels, you can set your own icon here by adding the class of icon, in the root node for `iconClass: 'fa fa-book'` an icon is shown as:\
Add from library
This feature allows us to link content to any unit/level from the add from library page.\
Here's the sample configuration:
```
config: {
mode: 'edit',
maxDepth: 2,
objectType: 'Collection',
primaryCategory: 'Digital Textbook',
isRoot: true,
iconClass: 'fa fa-book',
children: {},
hierarchy: {
level1: {
name: 'Textbook Unit',
type: 'Unit',
mimeType: 'application/vnd.ekstep.content-collection',
contentType: 'TextBookUnit',
primaryCategory: 'Textbook Unit',
iconClass: 'fa fa-folder-o',
children: {
Content: [
'Explanation Content',
'Learning Resource',
'eTextbook',
'Teacher Resource',
'Course Assessment'
]
}
},
level2: {
name: 'Textbook Unit',
type: 'Unit',
mimeType: 'application/vnd.ekstep.content-collection',
contentType: 'TextBookUnit',
primaryCategory: 'Textbook Unit',
iconClass: 'fa fa-folder-o',
children: {
Content: [
'Explanation Content',
'Learning Resource',
'eTextbook',
'Teacher Resource',
'Course Assessment'
]
}
}
}
}
```
Following are the configuration for add from library page:\
\
**1. Max content limit**\
This defines the maximum number of content to be created in a collection.\
Here is the configuration:
```
"config": {
collection: {
maxContentsLimit: 8,
}
}
```
Suppose if `maxContentsLimit` is set to **“8“** then while trying to add new content from `Add from library` it will give an error maxlimit message as:\
 \
\
**2. Configure specific contents** \
By using this configuration, you can also filter specific contents in the add form library page.
```
children: {
Content: [
'Explanation Content',
'Learning Resource',
'eTextbook',
'Teacher Resource',
'Course Assessment'
]
}
```
\
Here is the screenshot:\
Review comment
Reviewer has an option of providing comments (as a textbox) when requesting changes from the creator. \ 
\
\
When the creator opens the collection that is sent back for corrections, there is a comments icon in the editor (as in the current editor). Clicking that opens a textbox showing the latest comments from the reviewer.\
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