A question...

[Consigliere]

Ok guys... Let's start from the beginning.
The following figures are from GWX Gold (not sure they match the stock SH3, may be the GWX developers have found the way to alter the values i'm talking about).
The max (minimum depends on your own wish to place a sailor in a given position and your overall crew) number of sailors and peties in a compartments are as follows:
SubType II VII IX XXI
0_Tower 4 4 4 4
1_Radio 2 2 2 2
2_Contr 3 3 3 3
3_Diesel 6 8 8 10
4_Electr 6 8 8 10
5_BowT 10 14 14 12
6_BowQ 14 16 16 16
7_StQ 6 8 12 16
8_StT - 6 8 -
9_DeckG - * 3 -
10_FlakG * * * 2
11_Rep 8 haven't figured out yet on 3 types
* these values depends on the coning tower installed

The lines in the basic.cfg file mentioned by Anvart and the Crew_Config files mentioned by rowi58 deals with the current crew of the sub. Not its crew layout. As i do remeber my previous attempts the Crew_Config file does not allow you to place 5 sailors (not talking about WO position) on a conning tower...
As i do understand the graphic for the crew layout (the grey sailor icon on which you drag a sailor to place him in that location) is established in the menu_1024_768.ini file... But i'm not talking about the graphical side as i do not think that altering a texture layout will allow you to place additional sailor or to place less sailors than you can... So the qustion was: have somebody tried to alter those max values of crew members in a given compartment of a sub of a given type (have somebody found the file (the line in a file) which stores those values) or they are hardcoded in the game's exe...
Of course i do know how to place a sailor in a position from the game (F7) and from the outside (Crew_Config file)... But after all that is a modding forum and not a walkthrough...