Dogbone app, import dogboned parts without moving

I have a piece that needs both an outside and inside dogbone (e.g., outside for some tabs, inside for a mortise/pocket).

I can’t do both dogbones at once because they have different settings.

When I do the internal mortise/pocket and import it it’s no longer in the right place, and it’s (AFAICT) impossible to center the imported, dogboned pocket on the original pocket–when I center the imported, dogboned pocket on the original both pieces move, because you can’t lock a cut, and it averages the distance between them.

An in situ replacement of the selection being dogboned would be more useful; barring that, does anyone have a workflow that will allow me to combine inside and outside dogbones on the same piece while keeping their relative position?