It would be great if I could assign multiple tool with the same shortcut key. It is possible in Clip Studio Paint and I found it very useful.
For example if I assign a key ‘S’ for Lasso Selection AND Polygon Selection. When I press S it will activate Lasso Selection tool. If I press again it will toggle to the next one, the Polygon Selection. Press again it will toggle (loop back to the 1st) to Lasso Selection.
This design is actually very useful. In CSP, beside Selection type. I generally would setup keys to toggle between common line art pens, soft / hard airbrush and texture brushes. It help make each key binding more useful and make tool selection quick.
By the way, is it no possible to set a key to select a certain pen in Krita? I could not find it from the setting.