Edit clips
Rename clips
You can rename created clips directly in the clipper if you click on the Pencil icon from the clip list on the left side of the clipper.
Edit time frame
Time is in format min:sec.ms (minute:second.millisecond). Make sure you save the format correctly.
Add to group
First, you need to create a group then you can select available groups in the dropdown and assign a clip to a group.