TDC on/off keyboard button?
 

I'm trying to find a keyboard button to toggle the TDC/Position Keeper on/off instead of using the mouse pointer to click the GSP. I looked thru the entire Cfg/Commands page, but could not find it. If there is not one, is there a way to create one?

Look in C:/SH4/Data/Cfg/Commands.cfg:

[Cmd131]
Name=Toggle_TDC_autoupdate
Ctxt=1

Try adding a key binding entry (Key0=0xXX,,"X") to this block. May do what you want. Please post your results. Good luck.

Nope. That wasn't it. All that did was stop the autoupdate function when the target is locked using the "L" key. What I am trying to do is toggle on/off the entire TDC function when you use the mouse pointer and click on the GSP icon. The GSP button is just to the right of the POSITION KEEPER and TORPEDO SETTINGS slider when you are at the ATTACK SCOPE station. This will turn red when it is on. I want to turn it on/off using a keyboard key, not the mouse pointer.

Understood. Thought that might do it. Only likely candidate in commands.com.