Lowercase letters, digits and underscores.

Applied to every polygon in the layer each time it refreshes, including ones already drawn. For regions choose square on paper: the runbook squares each region on the page before fitting it, so a paper square prints exactly as drawn. A square in degrees prints about 1.3× taller than wide.

An icon replaces the dot and needs labels on.

Defaults to name, which is what hand-drawn features carry. Whichever field you pick becomes editable in the edit map.

The layer's data is archived on the server, not destroyed. The config change is not committed to git — commit it on the server (#195).