Adding support for gestures has been on the list for quite some time,
though quite near the bottom. I'm still testing the next rev, which
will basically finish up the roadmap I originally posted nearly a year
ago (adding multiple connection support, fonts, colors, key import,
more keys, etc.).
Once that is released I'll be working on making the UI a bit more
usable, including adding gesture support. If anyone else has ideas
for how this kind of input could be configured, I'd love to hear
them. It is an odd feature to make intuitive.
Eric