Switch language in Visual Composer

Hi,

I would like to add a drop down in my VC model to switch the language. I tried to switch the UME user language and then to refresh the page but there seems to be no way to reload the VC application in case the current URL is unknown (because it is a BPM task with a generated task-id at the end).

Is there some best practice how to do this in this case?

Thanks,

Kevin