Use the following rules and guidelines when you edit ports and groups in a Custom transformation:
You can change group names by typing in the group header.
You can only enter ASCII characters for port and group names.
Once you create a group, you cannot change the group type. If you need to change the group type, delete the group and add a new group.
When you delete a group, the Designer deletes all ports of the same type in that group. However, all input/output ports remain in the transformation, belong to the group above them, and change to input ports or output ports, depending on the type of group you delete. For example, an output group contains output ports and input/output ports. You delete the output group. The Designer deletes the output ports. It changes the input/output ports to input ports. Those input ports belong to the input group with the header directly above them.
To move a group up or down, select the group header and click the Move Port Up or Move Port Down button. The ports above and below the group header remain the same, but the groups to which they belong might change.
To create an input/output port, the transformation must have an input group and an output group.