Change profile in RTC

Is there a way to select the profile in Windows RTC. I know it can be done via CommandLine parameter however this approach is problematic when using the ClickOnce application. By using the "normal" client installation the command line works but only if connecting to servers both having the same Authentication method. Im wondering why the user is allowed to change the server, change the company but not the profile... OK, it can be done in the WebClient very easily but not in the Windows RTC - why? Is there a hidden feature which allows me to select a different profile in Windows RTC easily?