Blender 3D add-on that allows changing the radius of the Select Circle tool with the PageUp and PageDown keyboard keys.
Pressing the PageUp key increases the radius of the Select Circle tool. PageDown - decreases.
Key codes are stored in the Blender KeyMap and can be changed by the user to any convenient one.
For Blender versions
Pressing keys the "3D Viewport" window with the active Select Circle tool.
Current add-on version