Not all available integrations are pre installed. There are some which must run as an external integration or must be downloaded to the remote. Here is a list of current integrations I already told you a few month agao.
The Request integration from kennymc gives you among others WOL. I use HTTP-Post a lot as it is something like a Swiss army knife for me.
RS232 will be available in the R3 dock which also will work with the R2.
Perhaps some of your devices have a HTTP API also.
Ralf