make a plane able to be configured to run tabs in private mode

[vacy]

force a plane to run private mode

I would love a feature to force tabs in a plane to run in private mode.
This would be beneficial, cause you could run rules to throw the domain into the plane and they'd automatically run in private mode.

Also maybe this can be enabled by having a container do the job of private browsing and force all tabs of a defined panel to run in the private mode container?