The list of work types you rate engineers on and tag jobs with. Edit the name/colour, remove one, or add your own. Changes save automatically.
Rate each engineer 1β5 stars for the areas they're competent in. Leave blank if they don't do that work. The scheduler uses this to prefer the right engineer for a job (a β shows if none is rated). Tap a star to set, tap it again or β to clear. Saves automatically.
The scheduler's AI features (route optimise, work-area suggestion) are cheap but metered. Set a soft daily limit β over it, those features fall back to the non-AI behaviour for the rest of the day (0 = no limit).