CAD Sketcher

When I use the CAD Sketcher Add on and I want to draw a new sketch on a face, I use “Add Workplaneon mesh face”. But how can I be sure thaat the new sketch is in the center of the face? Because when I click on the face the sketch is created anywhere on it.

Disclaimer: I don’t know, but have an idea:

In older versions of Blender the cursor held an important role. Perhaps it has some relevance in this case as well.