Hi, dont know if this can help you because of your AAF mention but for for your grouping of clips of the same length problem, I see two things :
-
in the pool window you can sort files by length (for quick and easy selection) then drag and drop them into the project → select different tracks → they are all aligned on different tracks
-
if you then put your audio tracks inside a folder track, activate “group editing” (KC = K) and now all events that have the same start and end time are grouped.
Regards
Yannick