Request Shortcut Key Command: Previous Control Room Source, or Select Specific Source

In the control room section of the Key Commands window, there is an option for Select Control Room Source

I use this Key Command to select the next Cue source which I use to A/B reference with another track, etc.

I would like to be able to setup multiple Cues (all 4, preferably), however cycling through 5 sources to get to the one I want is kind of tedious. It would be great if each source can be given it’s own Key Command, or at the very least given the option to cycle backwards so that I can switch from Main to Cue 1 and back, without having to go through Cues 2, 3 and 4 beforehand.