How to hint of the existence of Manipulator WB within a vanilla FreeCAD install?

[luzpaz]

I've been thinking about an issue a lot from a UX perspective. FC doesn't ship with very powerful measurment capabilities hence manipulator was created. Is there a way we can within the current FC infrastructure provide a means for users to streamline finding out about Manipulator and installing it?

For example, we see the Tools → Measure distance option in the FC GUI, what if we had an option in that dropdown that was a lead to Manipulator WB? 'Install Manipulator WB' that would open the Addon Manager and queue up installing the workbench?

Edit: once the workbench was installed the dropdown menu entry would either be deleted or read something like 'Open Manipulator WB'