Some of us use keyboard shortcuts, they help us go much faster than we can alone. But it seems once you keystroke F for fill you have to go to the toolbar to go back to a drawing mode…Not So here’s the work around. Press F for fill, then instead of pressing .(period) for draw single dots press B instead for brush cutter. Then you can press .(preiod) for paint single dots. just a tip I found and wanted to share.