If you are using the same macro on each page, just edit it on one of the pages, right click on the button and choose "Copy Button". Then switch to each page and choose "Paste" from the Edit menu. The macro will be placed back on to the Power button on the current page. You should be able to replace all of the power buttons in a few seconds by pressing the Down Arrow key (to switch to the next page) and then CTRL-V (to paste) repeatedly.