Getting around: up a level and back

Up a level: left of a flow’s name is the level above it (the process area on the map, or the parent flow). Click it to go there; … lists every level up to the map. In a process chain, the arrow at the top left goes up to the chain above, or to the map.
Back: the arrow at the start of the tabs returns to where you came from, such as the map’s chain you opened a flow from, or a guide.

More on editing on the canvas