How to apply a fixed duration to multiple photo clips
I am building an iMovie project that includes video clips and photos imported from my Photos library. Frequently I have a string of 12 photos in the project where it would be convenient to apply a set duration different from the 3.0 seconds that is fixed on the photos that I import into the project (typically I would like the duration to be 4.5 or 5.0 seconds). Is there a way to select the photos that are in the project, then standardize the duration to 4.5 seconds? Currently I am "Stretching" each highlighted photo to adjust the duration, but this is a real pain to have to do it for each individual photo.
I see several replies to this question from 10 years ago, but the mac OS and the versions of Photos and iMovie have all changed since then. Can you give me an answer based on the current versions? (listed below)
Thank you
Buster
IMovie version: 10.1.9
Photos version: 4.0
macOS: Mojave 10.14
iMac, macOS High Sierra (10.13.5)