Edit regions and hierarchy
Select
Section titled “Select”Pick Select in the bottom toolbar (shortcut V) and click a region to select it. Drag on empty space to select several at once.
Refine the shape
Section titled “Refine the shape”Turn on Draw region (shortcut R) and click the region you want to edit to select it. It enters an area-edit state: grow it with Add, erase with Subtract, or add and remove with the Free lasso.
Hierarchy
Section titled “Hierarchy”Draw a region entirely inside another and it becomes a child in the hierarchy, like a city inside a kingdom. The structure appears in the Map hierarchy panel on the right, where items can be expanded and collapsed. Right-click an item to rename it, zoom to the region, open its linked document, or delete it.
Regions are allowed to overlap. A hierarchy is only formed when one region fully contains another.