To download the schematic with the blockexchange mod:
See where it fits with /bx_pos1 and /bx_allocate aiss cosoc
and load it with /bx_load aiss cosoc
To import a BX schema copy the zip file to the bxschems folder in your world directory
See where it fits with /bx_pos1 and /bx_allocate_local cosoc
and load it with /bx_load_local cosoc