====== INT Command ====== INT,,,[],,[] sets interaction, intermediate, interface, or internal nodes. The node set is defined by start node number , end node number , and step . Depending on the value of parameter , this instruction sets (=1) or resets (=0) the nodes as interaction (=0), intermediate (=1), interface (=2), or internal (=3).This instruction is used after the nodes have been previously defined.