Create a group channel, call it “My Record Bus” or similiar, go to your vsti channel settings and on the output tab, set it to got to the aforesaid recording bus…
make sure your record bus has the red button activated on the channel.
On your transport panel, set the "preroll to 1 or 2 bars…this will give you time to hit record,and then get into “position” .
better still, if you have one, use a footpedal or similiar to activate recording with your feet, then you dont need to move out of the flow.
Or even if you want to,as you mentioned about recording, why dont you activate that super lovely, always overlooked retrospective record feature that Cubase has, but nobody uses!.