Cannot duplicate/copy builders-grid from marketplace


I cannot copy/duplicate the builders grid. i tried it on my own domain and on maker… ctrl+alt and then drag does not work,
What i do or try it not let my copy the builders-grid.fbx

That very problematic , because you need more then one. At the same height and most easy way todo that is cpy the one you rezzed from marketplace.

It does not work, why cano i not duplicate the builders-grid.fbx entity ?