You can find any tool by the Menu Structure HERE: https://turbocaddoc.atlassian.net/wiki/display/TC20UG/Menu+Structure
You can find the menu location of any tool by name HERE: https://turbocaddoc.atlassian.net/wiki/display/TC20UG/Tools+Mapped+to+Menus
Circle - Concentric
Creates circles that share a centerpoint.
- Select a centerpoint for the circles.
- Size the first circle, or enter the radius, diameter, or circumference in the Inspector Bar.
- Create the second circle the same way.
- Create more circles as needed.
- Finish by selecting Finish from the local menu or Inspector Bar, or press Alt+F.