Draw cyclic strokes

Other programs like Toon Boom Harmony have a feature where if you hold Ctrl while drawing a brush stroke, the two ends are completed WHILE the stroke is being drawn.

In Blender, you can only do this by drawing the stroke first and then going into edit mode and toggling the stroke to cyclic.

To reduce a step, a toggle can be added in the Stroke menu in Draw mode called "cyclic" which will make all new strokes cyclic and show as such while the drawing is made. In addition, a keyboard shortcut can be assigned (like Alt/Option) to temporarily toggle it, just like how Shift toggles the stabilizer temporarily.