I succeed animating a full object collection.
I have 10 collections I want to animate sequentially.
How to animate every single object of each collection.
From collection 1
I want object 1 to appear after the frame 10
for object 2 after the frame 20
…
then for collection 2
object 20 after frame 100
object 21 after frame 110.
…
Thank you for your help