group drop down - NAUET 1.8

We recently became aware the "group" drop down is not explained in the User's Guide.  Here is a quick post to explain a little bit about how it works.

In order for the “group” drop-down list in a component bus interface to provide choices for group both of the following must be true:

1. The bus definition referenced in the busType field must have at least one signal with an “onSystem” child with the group field filled in.
2. The actual direction of the bus interface (master, slave, system, etc.) must be sytem or mirroredSystem. Simply selecting system on the drop-down is not enough. In order to make the change permanent, use the “apply edits” menu item in the edit menu, use the keyboard shortcut control-enter, or select another item.

If a bus definition has no signals with onSystem children, it means the bus definition is probably not intended for system bus interfaces interfaces. Before applying the edit, it is possible to cancel out of the edit, and the program cannot make the connection. A more elegant solution is in the works.