is the Star Wars mod in text? If not ask the modder, though i thought they were already in text. If so, open them in notepad, or any of the other very good text editors.
For increasing the number of capships though, you are going to look at the researchmaxcapitalshipslots and the researchmaxshipslots entity files in the mod, or copies from the Vanilla version of the game. Entrenchment doesnt have them, but they can be added i believe.
Anyway, look at the values close to the bottom that read:
modifierType "CapitalShipMaxSlots"
baseValue 1.000000
perLevelValue 1.000000
researchModifier
modifierType "CapitalShipMaxSlotLevel"
baseValue 0.000000
perLevelValue 1.000000
artifactPicture ""
and adjust the basevalue and perlevelvalue for each of the 00, 01, 02 files for all the maxcapships and the maxshipslots
You can get the rates unmercifully high, haha, high enough to max out a good computer!!
In the thousands if you want. Or tweak it to just add a few, whatever you like. 
-Teal