I think that what Tugdual means is, is it possible to have a glide only when playing legato, and no glide when playing staccato. I don't think that it's possible on the REV2 ?
The Glide Mode only selects how the glide will behave, but it will always be On, no matter how you play notes.
But you can have two different glide speeds for each oscillators though, à la Korg Mono/Poly, which is nice.