Out of all the options in above pic I just want to display My Settings, Toggle Theme and Logout
How can I do it and also can this be role specific ie., users of different roles can see different options?
You can hide them in the Navbar Settings doctype.
But it’s not role specific. You might need to look into applying js to the entire site (app_include_js hooks) to hide/show the drop-down options based on user roles.