
Steps
Hover over the "Circle" icon in the toolbar
Select "Center Circle" to enter Center Circle mode.
Create a center circle:
Left-click to define the center.
Move the cursor and click to define the radius point.
(Optional) Enter a value and press Enter to apply diameter constraint.
Right-click or press Esc to exit.
Step 1 - Hover over the "Circle" icon in the toolbar:

Step 2 - Select "Center Circle" to enter Center Circle mode:

Step 3 - Left-click to define the center of the circle:

Step 4 - Enter a value to add a diameter constraint to the center circle:

Step 5 - Continue drawing center circles:
