I am using the attached batt insulation.lsp on a regular basis but have a couple of issues with its function. Could anyone tell me if (and possibly how) the routine might be altered to achieve the following: 1. Force it to remember the previoulsy entered value for insulation width, 2. get it to ask the user which side of the selected line to place the polyline - could this be achieved by means of a user input click to show which side is required?, and finally (and most annoyingly) 3. can you also stop it from setting osmode to 0 and therefore forgetting all your snap settings at the termination of the command? I know its a lot of questions but greatly would appreciate any input at all. Cheers.