Atom does support Projects. The left panel is where you add your projects, which is created via cargo and has integration within Atom. You can hide the projects

Atom does support Projects. The left panel is where you add your projects, which is created via cargo and has integration within Atom. You can hide the projects panel by pressing Ctrl + '\'. There's an integrated terminal if you install the tokamak terminal. I'm not sure what you mean by a 'go' button though.