Dashboards — Arrange the grid
The canvas is a 12-column grid. In edit mode, drag a tile by its header (or anywhere on a KPI) to move it, and drag the bottom-right corner to resize; tiles snap to the grid. Give the whole board an accent colour from the panel to tell your dashboards apart.
Save dashboard keeps the layout, titles, accent, date range, and every tile's data connection. Cancel discards everything since you started editing — nothing is written until you save.