To copy a lead from one rental to another:
(1) Click into the rental where the lead is currently.
(2) At the right edge of the lead row is the 3-dot button like the one shown below:
(3) Click that and select "Copy Lead."
(4) On the next page select the rental address and click the Copy Lead button.
The lead will now be a lead on the selected rental, too. You can then invite them to schedule a viewing.