Need a series of equally spaced guides in your next layout? No problem. You can select and align ruler guides as easily as any other objects in InDesign.
Simply use the Selection tool (the arrow) and shift-click on several guides to select them, or drag a selection box over multiple guides. Then click on the horizontal or vertical distribution buttons in the Control Panel. You can also use InDesign’s Align panel (Window > Object & Layout > Align).
Note: You can’t select guides and other objects at the same time. When you drag your marquee over multiple guides, make sure not to select any other objects on your page.
Source: This tidbit found in the September 2008 issue of Design Tools Monthly. Seattle creative teams with a CreativeTechs support plan receive a complimentary subscription to Design Tools Monthly in their monthly care package.