Thank you, yes I deleted it because in this particular case I could not select second surface. I made another project and could select it no problem. Don't know why some times I can select some not.
Thanks for trick works good.

You made for me this script that allow hide objects and keep hiden edges hiden:
script: /* Replacement for Edit > Hide - on "unhide" this will only show the parent object and not all its edges */ var gd = moi.geometryDatabase; if ( gd.getSelectedObjects().length != 0 ) { gd.hide(); } else { var objs = gd.getObjects(); for ( var i = 0; i < objs.length; ++i ) { var obj = objs.item(i); if ( obj.hidden ) { obj.hidden = false; obj.selected = true; } } }


And it do nort want to hide object in this case, but simple hide works. Could you modify pleas this script to work?