I've started working on some enhancements to Radio Conversant.
These enhancements include a page that goes in your www folder, called "getConvMessage.txt". They also include two rpc scripts, "getMessage" and "setMessage", as well as a version of "sendOutline" for messages.
It works like this: I've added an "Edit In Radio" link to my template that links to http://127.0.0.1:5335/getConvMessage?zoneId=myZone&convId=myConv&msgId=theMsgNum
Click the link, and the page I added to the www folder gets run by Radio Userland. It fetches the message, massages it into an outline, then returns a message to tell you to switch to RU to edit your message. then pick "RadioConversant > Messages > Save Message" to send it back. All done!
BTW – you DO have to be a conversation admin in order for this to work. My "Edit In Radio" link is wrapped in a "userIsConvAdmin" conditional.