I've researched this and have never been able to find a solution. I have installed numerous programs which claimed to be able to map out the current key mappings - none worked and several crashed my machine hard.
Also, of course, Search Everything does not index files; it can only search file and folder names. It cannot search any file contents. While file names only is OK for me maybe 75% of the time, I still need to search file contents enough that Everything simply can't do it all for me.