Grand staff diatance.

I need the distance between the G clef and the F clef on one page of the score I'm working on to be greater than the rest of the song. I tried selecting an element, pressing the Shift button, and then pulling them apart, which does the right thing, only it does it to the whole song, insed of just one page. So, my question is, is there any way to get the distance between the G clef and the F clef greater on just one page of a song?