Swapping between brushes
Jump to Mobile or Windows 10
Swap brushes to save time when only using two brushes. You can use one brush, then return to the previous one.
Swapping between brushes in SketchBook Pro Desktop
Use one brush, then return to a previous one. After using the first, select another, then in the Lagoon, flick toward 
or press S to move between them.
Swapping between brushes in SketchBook Pro Mobile
We’ve added a tool which can speed up your workflow, 
Swap between brushes. All you need to do is use one brush, then select another. After that, then flick toward
to move between both brushes.
Tap 
, then flick to switch between the last two brushes.
Swapping between brushes in SketchBook Pro Windows 10
SketchBook Pro Windows 10 doesn’t have the Swap between brushes feature, yet.