Nudge distances for visual elements

Hi all,

I'm having a problem understanding how to do basic keyboard movements (nudges) of visual elements in Storyline.

For some story files, if I select an element and move it to the right with the right arrow key, it moves a large amount. And if I do the same thing, but hold down the control key, it moves the element 1 pixel at a time.

Some of my story files behave differently, with the right arrow by itself moving the element by only 1 pixel at a time. This is a bit frustrating.

My question is is there somewhere where I can specify the nudge distances?

Any help is much appreciated.