I’m sure you can do a more beautiful job than I’ve done here, but here’s a workaround using a laisser-vibrer tie (which you add by selecting the note in the second time bar and flicking the switch in the properties panel).
Bear in mind that when you drag the points around the mouse needs to go in the opposite direction to the direction you want the points to move in! This is a hazard of reversing the direction of the l.v. tie.
