Coupon For Shoots

Is it possible to create a coupon just for the booking calendar? I want to run a promotion but the only way I can work out doing it is to create a coupon between £x-£x the the amount the shoot is. Not ideal as of course it could be used on any cart for that value.

I've wanted this for a while, so many benefits such as future proofing against price increases on that service etc.

There is a thread on here you can put improvement requests on so it doesn't get lost over time.

There are no booking calendar specific coupons.

Another vote for calendar coupons! Would be excellent to be able to offer free sittings etc that can only be used for booking portrait shoots, not for purchasing from galleries :-)