iMovie 10 - Trim Clip/Nudge all greyed out
I am tying to align a video and audio track in timeline, I know I can drag the clips and magnify them too to make it easier but I would like to be able to use a keyboard shortcut to nudge the frame itself one frame to the left or right. Sadly everything in the Modify/Trim Clip Edge drop down list is greyed out, also I have not been able to find any shortcuts??
Using iMovie 10.3.1 on Mac OS Big Sur 11.6.5
iMac 21.5″, macOS 11.6