How to Add frames

I’m sure this has been asked before, I’ve searched but maybe I’m just not calling this the correct thing.
I have several elements in my scene that don’t move, the camera just zooms in and out of them over 5 secs. I import the elements (graphics) I need from Illustrator, but when I go to ‘sceneplanning’ mode they only take up 1 frame. I am used to Director where I could ‘option/drag’ the element to cover multiple frames.
How do I take the single frame item and extend it be onstage for lets’ say 60 frames?
Also, If I have more than one element that needs this done to it do I do them one at a time, or is there a short cut to do multiples.

Perfect! Exactly what I needed! Thanks!