Install:
Copy the script (setup.tp.xl.rename.xml) into your scripts folder. Ready ;)

One of these prefixes will be added to some of your TP class ships:

..Check.. = there is XL ware on board
--XL--    = the TP has an XL command (buy/sell ware)

You can remove the script from the scripts folder afterwards.

thx

greets ticaki