drag and drop from pull down menu, shelf tab, palette tab, or control panel using MIDDLE MOUSE button, into the open marking menu editor window.
as always, be sure to exit the program cleanly to insure your new preferences are saved to disk, because if you crash out the prefs will not be saved. of course you could right mouse inside the marking menu editor window to save the prefs manually, just accept the user_default name to be sure your prefs will load up when alias starts next time.