I have been doing this for many many years directly in the arrange window since Cubase SX/C5 days.
Maybe that will help some of you:
+++ MULTI WARP IN ARRANGE! +++
My workflow:
select all events. Group them (key command Strg/Cmd+G). Switching grid to: events (!)
Switch selection tool 1 to: time stretching.
I cut with ALT, zoom in with mouse wheel, set the cuts in which the audio should be warped.
It´s s also perfectly phase-locked to the other tracks because of the grouping. 
please see this short vid:
https://recording.de/attachments/cubase … gif.85211/
+++ another nice tool is SLIP EDITING +++
ideal for guitars e.g. (because warping sounds like 
)
SHIFT + ALT, then move wave content within the audio event(s)
short vid:
https://recording.de/attachments/cubase … gif.85212/
I am not missing anything.
C.