I did this by creating panels for each of the remotes I have and uploading the IR codes into those panels. Then create the panel you want as an action panel containing the action buttons, eg, Watch TV, Watch DVD, Listen to Radio.
Right click the action button and open properties. You will see the option for alias. So for example you wanted to watch TV you would create an alias to probably the TV on button, an alias to the Amp/Receiver on button, and maybe an alias to the TV channel button (if you have a favorite TV channel). You can do this for all your kit. You may need to include some delays between the aliases to allow the signal to transmit and the receiver to convert it.
Also have a look at
[Link: remotecentral.com].
Hope this helps
mike