The default of ISOLINES ON SURFACES are 6 in U and 6 in V.This setting is in the #D MODELING tab in OPTIONS.If I change these values to 0, it just change it for the current drawingMy question is, how do I change this values to 0 PERMANENTLY or as the DEFAULT.Thanks in advance. Its been bugging me for quite a while.

The values are assigned as an integer that is saved with the drawing it is not saved in the Registry which means it is NOT global.  I suppose you could set it using lisp and put it in your acaddoc.lsp file or in your StartUp Suite.
John Connor2016-03-23 12:59:34

If you choose to utilize acaddoc.lsp to reset these variables to something other than their default values the file should look something like this.  Note that the value of < 32 > is just something I used for this example.  Your values may differ.(SETVAR "SURFU" 32)(SETVAR "SURFV" 32)(princ "System variable defaults have been reset")

Thanks a lot,As you can see, I did a whole lot of others too. They were bugging me for years. Work like a charm.Any suggestions of others I can include. What are your favourites?Cheers.

PICKADD and FILEDIA.