App with a specific workspace

Hi, This is not an issue, feel free to close or send me somewhere else. I just didn't know the best place to ask this question.

I'm trying to change Weston code to force that a specific application always uses a specific workspace. One example would be always opening the cog browser in workspace 4.

I'm reading and debugging the shell.c but because I don't have any experience with Weston I'm kind of lost. Does anyone have a tip for me?

Thanks