# Comments and collaboration
Team members can discuss and coordinate their working process and comment on new posts being created. Login/password authentication is required for each user to start leaving comments in Setka Editor.
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Collaboration features are available in the Setka Pro plan. Please [see our pricing page](https://setka.io/pricing) for more details.
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User authorization and collaboration tools require plugin version no older than 1.10.0
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## How do I add comments?
Click in the paragraph where you would like to leave a comment. When your cursor isn't located in the area where you can leave a comment, the comment icon (button) in the Side Toolbar will remain inactive and will look like this: 
.
When you clicked the paragraph where you would like to leave a comment, click the Add Comment icon 
on the Side Toolbar.
Type your comment and press ENTER. Comment boxes appear in yellow. As you add a comment, you can also notify one of your team members (or several team members) by selecting their name(s) in the drop-down menu.
## How do I reply to a comment?
To reply to a comment, click on the comment box and type your response in the reply field. This will create a comment thread.
Now add your reply and press the **Reply** button.
Here is how a commenting thread will look like after you press the **Reply** button:
## How do I delete a reply?
To delete a reply, click on the trash icon 
- it's located to the right of the comment.
## How do I delete a comment thread?
To delete a comment thread, click **Resolve** in the top right corner of the comment area.
## How do I add a team member?
There are two ways to register a new team member:
* Invite user from your Setka Account.
* Sign up directly in Setka Post Editor.
The number of team members is limited by your Pro plan options.
Learn more about Pro plan options on the [pricing page](https://setka.io/pricing/).
## Signing up in Setka Post Editor
New users of the Pro or Enterprize plans can create Setka accounts directly in Setka Editor.
Click the Add comment icon 
from the vertical right-hand toolbar and Sign Up in the pop-up window.
Once registration is complete, users can start leaving comments in Setka Editor.
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