To create complex port bundles, do the following:
1. At the INPUT-side, select a port, specify the port type (real, virtual, shared), click the "Add port" button. Add as many ports as you need with Virtual Serial Port PRO.
2. Choose a virtual port to set as the main one, click the "Set main" button.
3. Add ports to the OUTPUT-side.
4. Click the "Add bundle" button. Now, your complex bundle is automatically created and displayed in the Bundle tree.