Hack to have multiple Undo Levels in Image Composer: Set a registry entry thus: [HKEY_CURRENT_USER\Software\Microsoft\Microsoft Image Composer\Settings] "MaxUndoLevels"=dword:00000010 I had to actually create the entry, but YMMV. I was amazed that this worked. Why this is not a default or at least a configuration option is beyond me.
One more home in Cyberspace