I recently wrote that we support download counters with DSM 4.1. Today I am very happy to say, that we now also support the last new feature of DSM 4.1: Software channels.
On our "Users" site, the instructions to configure this were added. In short, it uses the same mechanisms like Synology.
If the beta channel is selected, you will be presented with all cutting-edge updates of your favourite software. The release channel only shows beta software, if no stable version is available yet.