I think instead of Queue Tab we should consider History Tab for each connection,
and all the details which are being showed in the other window which opens after we try to connect "Searching For host, Connecting to host, Authenticating...." should be displayed in History Tab, like in SQLyog.
It would allow switching connections while connection is being created. And when Workspace is being restored all the connections should automatically start connecting.
Thank you for considering in advance.