Paul Owens, a CAD systems administrator, dislikes unnecessary prompts. Here is his tip on dealing with one such annoyance.
"We often use the Pedit command to turn ordinary lines and arcs into polylines. But whenever we select a line or arc in the Pedit command, AutoCAD responds with the following prompt:
Object selected is not a polyline. Do you want to turn it into one? <Y>
Of course we know the object selected is not a polyline, and of course we want to turn it into one. If you find this extra prompt to be a waste of your valuable time, then be sure to set the system variable PeditAccept to 1. This setting will disable that unnecessary prompt and immediately turn the object(s) you select into a polyline."
Notes from Cadalyst Tip Patrol: I share Paul's frustration about this prompt. Even if I didn’t know an object wasn’t a polyline when I selected it, I must want it to be a polyline, because I chose to use the Pedit command. This feature must have been put in by a lawyer at Autodesk!