A pair of openings side by side, sure, you could use a single 6022, such as for 2 OHD's on a typical garage, but you wouldn't run a wire across the space to pick up an additional point.
If you're going to run that much wire for a single RF contact, then why not run it back to the panel?
Generally RF is used where hardwired is impractical or construction details don't allow. A multi-point transmitter is supposed to be used for a couple of common points in close proximity, such as a double window, etc. where it's possible to run wire from a centralized transmitter to each sash or each OHD.