I have disassembled quake3.exe version 1.16n with IDA pro and trying to find a way to increase size of shaders[MAX_SHADERS] array from 1024 to 2048 (or more), it may probably allow me to load bigger maps in old version of quake 3 with no issues. I found that this array is stored in .data segment which seems a part of .exe file.
Is there a way to increase size of .data segment and change pointers to a new values? If yes what tools may I need for this task or I can do it in IDA?