Hide data above certain scale

[58gschol]

Hello,

Does anyone know, if there is a way of hiding pictures in OCPN and OCPN-Draw, when the map-scale is above a certain value?

I did succeed to hide pictures in OCPN, as well as the text in OCPN-Draw, but I could not find a way to hide tracks (or routes) in OCPN, and symbols in OCPN-Draw.

The command I did try to use, were:
'opencpn:natural_scale'
'opencpn:scale_min_max'
but no success for the mentioned items above.

If there is a way of hiding these items above a pre-defined scale, could someone tell me the trick?

Thanks.