In the 1.5 release, I've added a menu item for certain popular keymaps: Backspice, Default_V5, TabSpace, and Typemax.
I've looked at displaying the mouse button labels for Typemax, and there's a catch as it stands. The Twiddler Tuner exports a keymaps as CSV; however, this excludes the mouse buttons. So, to support display of mouse button labels for Typemax in Twidor, I'll need to change to binary keymap files. So it's going to take more time to implement binary cfg file import in order to display of the mouse button labels.
Meanwhile, here's what the Typemax keymap looks like in Twidor.