Jason, thanks, I was hoping you would chime in. Great catch, I totally forgot about removing the pointer on mouse over!
Also, I keep forgetting about the Lectora %HTMLNAME% token replacement (I do most of my work outside of Lectora). It should work and make implementation easier.
The class idea for the hover “might” work, however, I think the adding a class in the appearance tab will assign it to the wrong element ( button131383 instead of button131383btn ). This is something that is sketchy in Lectora, experimentation is necessary.
There is a way to control tabindex via CSS (although user-select might work, hmmmm).
These are definitely some great ideas to try.