Page boundary clipping...how?

[ger]

So I'm working on a theory that requires 5 elements to be half on, half off the page, and that the page only display the on-page portions of these elements. I thought anything outside of the page/parent-page would automatically be cropped, but this seems not to be the case. I tried using the ClipToPage="true" argument, but that turned off the display of everything in the page—clearly this isn't what I was shooting for. Anyone got any suggestions?