Make CompositeKeyCreator \ Tools \ Non-Geometric \ Composite \ Make-Composite
The Make Composite Function allows you to create a composite from existing entities.
Using the Function:
1 Select Make from the Tools>Composite submenu.
2 You are prompted to name the new composite. Enter a name.
3 Select the entities you intend to add to the new composite, using the Universal Selection Menu. The composite is then made, and given the name you had assigned to it.
4 Once the entities have been selected, you are prompted to enter a name for the next composite to be made. If you do not wish to create another composite, simply select ESCAPE.