The Levels menu

The Levels multi-select overlays up to 31 price lines in ten groups: each Greek's flip and walls, the 1-day expected move, prior-day levels, intraday levels (opening range, pre-market, session high and low), volume profile (Pro and up), pivots (Pro and up), and the top open-interest strikes (Pro and up).

Changing the Greek resets the selection to that Greek's defaults, its flip plus both walls plus the expected-move band. The Reset button restores those defaults rather than clearing everything.