Welp, tried again the unofficial fix to expand the party to six with the new patch (7), I found the NEW placement for the string to edit, but now the game crashes 100% of the times for me when the tweak is applied. Guess there's no way around playing with 4 characters now.
Can confirm party size mod still work in p7 as long as you create less than 4 char in multiplayer... PRAIZE THE MOD.
STILL WAITING FOR NEW COMPANION AND CUSTOM PARTY WITHOUT MULTIPLAYER. BECAUSE WHY FUCKING NOT???