This command will not be supported in future releases. This is the old command for inserting a node in a topology. The new command is MAPIN.
Use this command to insert a node on an existing link while maintaining the integrity of the topology information.
Respond to the prompts:
Enter the name of the topology to modify. To display a list of all loaded topologies, enter ?.
Enter the coordinates of a point or select a point on the screen. If any block definitions exist in the drawing, you are prompted for a block to reference. The default block name is the last block name referenced in the drawing.
To add a node at the end of a dangling link, or to add a node not on a link, use the MAPNODADD command.