RDM as a session manager of google chrome

im currently using another software for this matter which is not stable and have a lot of issues.
would like to know if i can use RDM for this
i noticed theres an option to create an entry that will open up a web browser with either IE/CHROME/FIREFOX
say i choose chrome, then i put a proxy settings in it and the website i want to go to, all is well , its opening up fine, but when doing a leak test by going to www.ip8.com
it shows the proxy ip address AND my personal IP address there, which means it doesnt have a webrtc built into it, is there a way to add it some how ?
i want to be able to create sessions in RDM, each will have its own proxy and all is seperated with no shared cookies etc.
is this possible ?