[QUESTION]What Dock Class in Dummies.txt include TM ships?

[Overwatch]

I have been playing X3TC for about a week and I feel comfortable enough with what is included to start modding my game. After looking at the mods available to change docking configurations to ships, I find that they:

1. are FAR too inclusive (IE they add dozens of new ships)
2. allow docking of ships that make little sense to me
3. don't allow the ships I want to dock

So as usual for me, I'll just dive right in and make what I want. But I'm a bit stuck.

The first thing I am trying to do is add 2x external docking points onto an Orca. The ship classes I would like to be able to dock are TM, TP, TS. Of the flags available in Dummies.txt under the SDTYPE_ANIMATED section, I can't tell what ones include TM class ships.

I thought they would be included in TRANSPORT but it does not seem the case. When I tried TRANSPORT I was only able to dock TP and TS ships and the TM ship did not show the Orca.

I'm working on WAY more than this, but at the moment the how/why of this problem should help me figure more stuff out.

Any ideas?