Revit :: Why Basic Drafting Features Don't Seem To Work With Reference Planes

I am learning to use Revit 2012 and having a hard time figuring out why basic drafting features don't seem to work with reference planes. Aligning more than a few of these one-at-a-time is time consuming - any way to extend multiple reference plane lines to a boundary line or object? I read your instructions for offsetting reference planes - when I select the reference planes button in the home tab, the options bar allows me to set an offset distance but I am at a loss as to how one goes about getting the line to offset - I keep getting the layout dimension when i try to click on the line!