How to set a common directory for all subProjects?

Question

gradle

Good afternoon! When building a multi-project, there was a problem related to the project in principle. The essence of the problem is that there are a lot of subProjects, and in addition to them, the main project has libs, cfg, build, etc. folders. I would like to transfer all subProjects to a separate folder, so that it looks like this:

But I did not find information to do so. And actually the question is how to set a common directory for all subProjects?