Advanced Comments extension for VTiger converts regular VTiger comments to featured comments. It adds several vivid enhancements to existing comments functionality. In addition to two picklist fields that you can create for comments (used for categorization), several distinguish features have been added to the extension so far. Rich text formatting, reply via email to a comment, making comments internal by default are just some of those. The extension also supports tagging users in comments using standard @mention. The tagged user gets a notification via email about the comment.