Backporting Ignition Perspective 8.3 project to 8.1

For whatever reason I find myself in the need to maintain up to date versions of a perspective project on both 8.3 and 8.1 gateways. I would personally like to work on on an 8.3 gateway while making changes to the project and am wondering if there is a clean way to backport a perspective project export made for 8.3 to 8.1 - I notice that we lose the session and gateway event scripts but not much else.

I am aware that forward porting the project is already built-in and simpler, just wondering if there is also a simple way to do it backwards also.