Sound Companion with SHM

I was unable to get Lannounce and Bigtalk installed so instead I was able to use Sound Companion in Smartthings with my Sonos speaker to have alerts played when my door is opened. I have two questions. I would like to be able to add a sound that is not listed and I would like to be able to play a certain sound when my alarm is armed away as a reminder to disarm. If anyone has any suggestions I would appreciate it.

Upload your sound to a storage site, ie github, google play , etc

Then Call the address of the sound to play via sonos. I do this with webcore, and use play track then enter in the url.