Thank's Lar : I didn't know the command Options menu> Set Grid Center you indicate me in topic "General DesignCAD Topics > General Discussion > problem of updating the origin of snap grid", because for us, in france we have going from V15.53 (Designcad pro6000) direct to V18.33 (Designcad pro7000), and this command appeared as you say in 17&+ versions (maybe 16&+). And I'm not often using snap grid and display snap ... ! This explains it !
Did you try using the command itself, in the following format:
(note: You can use the Tools menu> Macro Record command to run the actual command and record the correct syntax and parameter.)
>SetGridCenter
{
<PointXYZ [x, y, z] '... you can replace the actual coordinates from the recorded macro with variables
}
Yes, for developping macro, I use this method for a long time ago !
Thank's for all !