curious if there is a way to create a cplane tan tan to two surfaces? like this?

i know how to do it with transforms using math but it’d be cool if i could select the green ploysurfaces and it would give me a plane tan tan to both of them. in this example there would be two possible results but that could be done with a “flip” or something in the command.

t hought it might round out the set cplane abilities.

Hm - I don’t see how off hand for any two surfaces, they’d need to be pretty special to find a plane it seems to me and my three remaining brain cells.