Sometimes you want to configure users dashboard by role when you add new user
1/ go to module configuration admin/config/system/user_dashboard_role
2/ Activate the block you want to display in the user dashboard
3/ setup for old user : go to admin/people and select vbo "Reset user dashboard"

For the developer, use the user_dashboard_setup ($account) to configure the user dashboard.
module dependency of module userDashboard