Innovator's Upgrade Feat

Prerequisite: Inventor

• You've honed your mind into a nonstop analytical machine. You can select an additional upgrade from your subclass list. The upgrade must be from the Unrestricted list. This upgrade doesn't count against your class upgrade total.
• If a feature allows you to exchange upgrades, you can exchange upgrades selected with this feat, but they must be selected from the same (or lower) level requirement category as the originally selected upgrade.

Source: KCCC, page 126