In Ace, you can have several skill matrices, as well as several positions.

The main skill matrix and main position will be displayed when you open the Profile or Team & Analytics section. In this way, you can highlight the matrix which is the most important for you, so that you can always see your match.

How do I make the skill matrix main?

Check this article here. We're explaining how to add a position. All you need to set some position main is to check the checkbox "Set as main position" while adding a new one.

Or in the modal window "Manage position" press three dots on the right side and pick here "Select as a main skill matrix"