Currently, the Quantize note length value can be controlled with keyboard shortcuts and macros. But Swing can not! I can set the Quantize to 1/4 notes, 1/8 notes, triplet 16th notes, quintuplet 1/64 notes... all with the keyboard, or as a step in a macro. But to use Swing, I have to go to the mouse and click around myself.
Please add a command in the keyboard shortcut menu to open a dialog box and type a swing value. Please also make this command available as a macro step with an argument to set swing value.