Streamline 'already in a session using a different device' process.
On my main desktop I'm usually logged into a couple/few machines via SplashTop. A problem I often encounter is if I'm away from my desk and need to access a computer from a different device I get the "Your account is already in a session using a different device (MY-DESKTOP). You can only establish multiple sessions from the same device." [OK]
99% of the time I suspect when a user gets that message-- they do what I do: Go back to the computer listing view, and scroll down the full list, looking for any computers with active connections. Hit properties on each one, check if they're the account connected, click disconnect, and then retry.
If you're in a multi-user business account, there might be many active connections, of which only a few are yours, in our case I have to scroll through 100+ machines looking for that 'connected' indicator.
I suggest the better way, the way that would fit the majority use case would be:
"Your account is already in a session using a different device (MY-DESKTOP) it is connected to COMPUTER-A, COMPUTER-C, COMPUTER-D. Click 'Disconnect All' to disconnect all the open connections to allow this session". [ DISCONNECT ALL ] [ CANCEL ]