To make your EI run Worldedit commands take a look at the next format (that it should go on commands section.) and use it as reference
#PASTE A SCHEM WITH WEworldedit:/world NAMEOFYOURWORLDworldedit:/schem load NAMEOFYOURSCHEMworldedit:/pos1 %block_x_int%,%block_y_int%,%block_z_int%worldedit:/pos2 %block_x_int%,%block_y_int%,%block_z_int%worldedit:/paste