Comments build up quickly, and then it gets difficult to dig through a wall of grey comment boxes. This would introduce the ability to have comments that are threaded together.
Pinned comments are displayed with the small grey icon in the P3 header and in the timeline but look like normal comments. It would be useful if they stood out more.
For example, it would be super useful to be able to select, copy and paste excel data into the comments, instead of having to screen capture data and paste it as an image