How to Install r2modman on Mac with Crossover
Wine Configuration: winhttp
Command Modification: --in-process-gpu
Sorry for my bad english, but you can just follow the steps without my voice :D
Timestamps:
0:00 Intro
0:14 Installing r2modman
0:42 Wine Configuration
1:04 Creating Modified Shortcut
2:00 Trying to Open r2modman