On the subject of Hot-Keys / Keyboard Short-Cuts, which has been on my (what passes for a) mind recently, how about implementing a User configurable Hot-Key functionality?
This could be in the form of a Pattern File or Application wide, User editable, XML-File (I’m sure this app already maintains XML config files already!). Alternatively the app could generate ‘User’ Specific ENV Variables (not for Mac or Linux afaik) and access to these does not involve file access, so is quite quick.
The option to revert to a ‘standard’ set when one loses track, should be present! 
… been there, done that!