Hi NightCabbage - it looks like it is similar enough to Inset that it could be possible to have it actually handled by Inset rather than as a separate command?

It is possible in inset to control the border thickness separately from the inset depth, by checking the "Use separate height" option.

So I think what you would want would be to have a 0 sized thickness for the border but then set "Use separate height" and specify a non-zero height/inset depth type value, is that correct?

Right now I think that it does not think that a zero thickness is a valid value and just bails out, but would that combination of 0 thickness + "Use separate height" height set give you the result you are looking for there?

- Michael