Done. I assigned every one of the 72 pins to exactly one primary function group and updated the terminal metadata with Pin Group and Pin Type.

I also saved the full exclusive grouping table in the project file STM32U3C5JIY6QTR Pin Groups. Spot-checks passed, and review shows no open errors or warnings.

Got it — I’ll keep the existing pin groups and assign the terminal Section property so the symbol is organized into functional sections without duplicating pins.

I assigned the existing grouped pins into functional Section values across all 72 terminals: Power, Ground, System Control, Clock, GPIO Port A/B/C/D/E, Debug/GPIO, and RTC/GPIO where appropriate.

Verification spot-checks passed:

Review reports no open errors or warnings. Some Section values triggered non-blocking suggestions because they are more specific than Flux’s common presets, but the values were applied successfully.