Shortcuts for Quicktext

Several months ago I did set shortcuts to insert quicktext. Like: CTRL-1 inserts a boilerplate, Ctrl-2 another one, etc… I am trying to add 1 more but I cannot find anywhere how to do that and I can’t remember how I did it! I can set a quicktext without any problem but I cannot link it to a shortcut. Furthermore, if I edit a quicktext which already had a shortcut, the edited version appears when I chose the Quicktext from the menu, but I still get the old version when I press the shortcut key… I guess the shortcut key is actually not assigned to a quicktext but to something else to insert text, but no idea how to do it anymore! Any help appreciated! Thanks!