Can't set duration of movie clips to same duration in Imovie
In Imovie 10.2.5 I have many still video clips that I want to highlight all and change duration of all of them to same duration. However, when I click on the i for information circle it shows a number and then 'of a number' followed by an s. What am I doing wrong and what is the "of" mean?
iMac 27″, macOS 10.15