extend multiple entries in timeline to longer clip length?

Sorry, noob here.

I am trying to make a simple motion graphic.

Initial clip length was short.
It's growing now.

But, how extend the length of multiple entries in the timeline at once?

I can select the end of each one individually and extend it, but have not found a way to do it when I have multi selected several objects.

Rotating_Box_4.png (63.3 KiB) Viewed 631 times

Trimming and dragging multiple selected objects all at once works fine for me on Fu7 [windows], but not so in Fu9. Some things have been broken for the timeline area apparently.