The pitch bend drawing in the MIDI clip window should use the same paradigm as the automation : curves and points. right now, although it works perfectly it is (and always has been) very hard to use, and quite error prone ; Also it could use a "auto return to 0" checkbox / option.
i don't think so, sorry, the pitch-bend and all controllers events pane work just the same for ages; they are NOT automation curves: they are discrete MIDI events; or, IOW: each bar is a real MIDI channel event or message--it is not an envelope curve; although you can map a MIDI controller to an automation subject and record as an automation curve, not all MIDI events get to automation nodes: they are aliased and smoothed for that matter; and no, that's not going to change anytime soon, so sorry.
and what does "auto return to 0" would do anyway? I reckon physical pitch-bend wheels have that sort of thing, but question is how do you think that's supposed to be "emulated" while drawing in the MIDI clip editor? any ideas are welcome ;)