I can confirm this. This appears to be a bug in Unity. There is nothing that can be done at the Unity Tweak Tool level to fix this.
I'll figure out the appropriate package to mark this against and redirect you there. ** Changed in: unity-tweak-tool (Ubuntu) Status: New => Triaged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1354741 Title: In Hotcorners, “Toggle Desktop” works only for showing windows To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity-tweak-tool/+bug/1354741/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs