Click a column's name or ✎ to rename it, drag the ⠿ handle to reorder (or focus it and
use the arrow keys), and 🗑 to remove an empty one. Columns, their names, colours and the
two rules below each are part of the board and travel with an export. The tick box only
changes this browser's view — a hidden column keeps its tasks, and you can still move a
task there from its detail panel.