HOW-TO: scan a whole watchlist with ZoneLens (Pine Screener)

fill or a structure break on the last bar (the value is a bit mask, see the script page).
7. Scan. Sort by a column, for example by the distance to the nearest OB+.
Notes
- The screener does not alert. For the symbols you pick, create a chart alert (ZoneLens has 16 alert conditions and a combined alert() message), or a watchlist alert on a list of them if your plan includes watchlist alerts.
- The screener runs on the last 500 bars only, so zones older than that are not known to it; the chart may show more.
Band events (256/512)