SolidWorks 2015 brought an announcement that we would finally be able to re-attach centre marks if a hole moves or whatever.

Can't seem to get it to work - I have some brown centre marks, I right-click on them, hit Reattach, and click the edge of the hole.  I would have expected them to change back to the attached colour, but instead SW just sits there with the Centre Mark dialogue box open on the side and I can't do anything except hit Escape repeatedly to cancel out of the command.

Any ideas?