[TxMt] How to use TM/TM2 as an external editor to TeXShop?

Hi *,

I’d like to use TM and TM2 (or at least one of them) with my custom TeXShop engines. By including a shebang-like line in the first line of the input, e.g.,

---

%!TEX TS-program = pdflatex

one tells TM to use pdflatex; but there is no way to tell it to use, say, my ho-dtxmk engine (which processes DTX files using Heiko Oberdiek’s (ho) extracting/documentation wizardry).

So, is there a way to have TM[2] run TeXShop as the typesetting engine when I push Cmd-R instead of running the tex binaries directly, thus functioning as the external editor in TeXShop?

Regards from Ladenburg,

-MWL-