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Tried to change a shortcut for "Go to Declaration/Definition" from the default to control-command-up, as I'm used to that from another IDE. Tried to redefine it in the keyboard shortcuts preferences, but it can not be done. See attached screenshot that contains the error in the shortcut list. There is no other old shortcut that uses the shortcut I want. Notices that I've looked up all shortcuts that use "up" in any way. The OS does not use that shortcut either for any own uses, so it should be free for my own use.
Created attachment 158722 [details] Screenshot showing the shortcut error
Btw, in Keymap there is a Profile combo box. May be you can find there the profile for your another IDE and switch to it?
In general NB's shortcuts are fine, I've used the Java side a lot and have no problems with most shortcuts. I have no need to switch everything to another IDE's shortcuts. I only want to change a few of them to suit what I'm used to from IDEA, Emacs and Xcode and this was one I tried to change.