It would be useful to be able to specify which object's dynamic guide the user would like to use to place another object. Sometimes, when there are many object on the layout, placing and aligning an object becomes more difficult as other object's dynamic guides override the guides of the object that the user would like to align with.
I would suggest a method similar to the Format Painter tool:
- click button is status bar; select object 1 to align to; click and move object 2 to be aligned with 1, based on dynamic guides of object 1
During this process, guides of other objects would be muted.