Valuable extra grip to avoid the dreaded PEDIT command; drag the nifty grips to modify the design; everything literally snaps into position.
Polyline objects now support multifunctional options. The available functions (Stretch, Add Vertex, and Convert to Arc) can be seen by hovering over a grip, and you can choose an option directly from the context menu that appears.
You can cycle through the available functions by pressing CTRL or choosing one of the options from the right‐click menu. Icons next to the cursor indicate the active function.