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I want to strech a line, using grips. I grab the grip at the end I want to stretch, move it in the desired direction, type in the distance to stretch e.g. 20 on a line that is 50 long to start with. Hitherto, it's ended up 70 long, but now is 'retracting' to 20 long. The only Setting I can find is DYNPICOORDS - it's already set to  Relative;  Absolute makes no difference. Help>Grips Editing describes what I do, doesn't suggest why it's now working differently.