Still working on a way to test that.....
But in the meantime:
https://github.com/xlab/matchbox-keyboard/issues
= = = =
And another part of my self-induced problem(s) was that the most recent kTerm is 0.7 not 0.4
Phooey!
As kid goes off to re-install a complete set of everything on one of the Kindles here.