While optimizing the scattering region using gold electrodes in SIesta v4.0.2

i used this below showed inputs to fix electrodes positions

%block GeometryConstraints

position from 1 to 8

%endblock GeometryConstraints

%block GeometryConstraints

position from 1 to 8 1.0 1.0 1.0

%endblock GeometryConstraints

%block GeometryConstraints

position from 1 to 8 1.0 0.0 0.0

position from 1 to 8 0.0 1.0 0.0

position from 1 to 8 0.0 0.0 1.0

%endblock GeometryConstraints

%block GeometryConstraints

position from 1 to 8 # Do not move at all

%endblock GeometryConstraints

%block GeometryConstraints

atom {1--8} # but it is showing that this input is not implemented yet

%endblock GeometryConstraints

but electrodes atomic positions are changing when i checked in finaloutput.

how to fix this issue

Thanks & Regards

Shanmuk