3 - From the Constructed  Features grid, click on the boss, and turn it into a Space Object circle.

4 - Test build a circle

5 - If the circle is on the correct side of the boss and the vector is point up, then press Create a NEW circle:

6- Do the same for the other boss. Click on the second boss in the constructed grid to repeat the process.

7 - Close the floating windows, click on Space Objects in the navigation pane, and choose ROUND SLOT.

8 - Select the two space objects in the Circle 1 and Circle 2 boxes

9 - Press Test Build

10 - Press Create NEW NOMINAL…

11 - Close the floating controls and press Constructed BOSS: From Space Object

12 - Choose the Round Slot in the From Space Object box, then press Test Build

13 - Create a new boss.

14 - This new boss can be used for drilling a hole.