You can change the attributes of individual ruler guides, and you can move, cut, copy, paste, or delete multiple ruler guides simultaneously. Cut or copied ruler guides can be pasted to other pages or documents, but not to other programs. To change attributes of specific guides, you must select the guides you want to change. When no guides are selected, the Ruler Guides command sets the defaults for new guides only.
To move a ruler guide, drag it.
To move multiple ruler guides, shift-select the guides you want to move, and then drag them.
Move selected guides just as you would any other selected object, including nudging with the arrow keys and using the Control or Transform panels.
To make a guide snap to a ruler tick mark, press Shift as you drag it. Or select the guide, press and hold down the Shift key, and then click the mouse button.
To move a spread guide, drag the part of the guide that’s on the pasteboard, or press Ctrl (Windows) or Command (Mac OS) as you drag the guide from within the page.
To move guides to another page or document, select one or more guides, choose Edit > Copy or Edit > Cut, go to another page, and then choose Edit > Paste. If you’re pasting onto a page of the same size and orientation as the guides’ original page, the guides appear in the same position.
To change options for one or more existing ruler guides, select those ruler guides.
To set default options for new ruler guides, deselect all guides by clicking in an empty area.