Origin frame selection.
It is necessary to :
on 3 axes machine, select a oriented frame as machine frame.
on 5 axes machine, select a frame like for 3 axes machine, unless we really want a rotated origin on the machine.
Allows to choose the origin point if the default one is not suitable.
When this option is checked the origin is positionned as defined in the default options.
This option allows to edit the positioning that has been automatically applied in [ Tools / Options / Origins ] to modify it locally on the selected origin.
The others origins are not impacted and keep the default automatic positioning.
This option allows to define the origin name (G54, G55, 1,...)
This name will also be sent to Pp for G-code.
Here we have to select the part holder for the origin.
In a twin-spindle turning machine, we have to choose for example the main spindle or the sub-spindle.
On a universal machine we have to choose the frame.