xrange / yrange / zrange

Hello,

I would like make a group of geometry/nodes/beams/plates with xrange/yrange/zrange for example

    START GROUP DEFINITION
    GEOMETRY
     _group1 xrange 0.5 0.8
     END GROUP DEFINITION

I would like use is xrange/yrange/zrange together

Do you know how can I do it?

Any idea?

Thanks in advance