Yes you can remap controls to keys and that control would then have the exact same behaviour as a key in LSX, with its control value being the velocity.
A key can be used in the following ways:
* change the active segment of the timeline
* change the value of the key and velocity variables in expressions
Those two actions can be done with the four inputs (midi input device, on-screen keyboard, alphanumeric keyboard and masterbeam cues) I listed above. Hope that clears it up but when you start using it it's going to point itself out right away.
It goes to the end of the effect then stops playback entirely, instead of pausing at the end. You need to click the play button for it to work again.
Yeah I had to play the show for it to disappear. Guess it doesn't update the window when nothing is being drawn.