Thanks for taking the time to report this bug. The key for hiding and showing tilda can be changed by right clicking tilda -> Preferences -> Keybindings. I edited the bug description to reflect that a gui exists for editing the default key.
I agree with you that None+F1 is not a good default key. I also reported this bug upstream. -- Bad default (None + F1) https://launchpad.net/bugs/75611 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
