From a wishlist raised by a user against Terminator - I think this is something that should done at the VTE level. From https://bugs.launchpad.net/terminator/+bug/1475123
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i would like to see a title bar string stack. i could not find such a feature on terminator as of yet. as implemented in xterm, basically send '\033[22t' to add to the stack, then '\033[23t' to restore.

this allows the customer to do things like the following:
1. add the current title bar value to the stack
2. set the title bar to a remote hostname
3. ssh to that remote host
4. restore the previous stack string value

this works on an xterm:
1. echo -ne '\033[22t'
2. echo -ne '\033]2;your-host-name'
3. ssh your-host-name
4. echo -ne '\033[23t'

conveniently setting the title bar to the name of the host and then resetting it back to whatever it was before after the completion of the ssh command.
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User tested against old VTE (0.28) but I also checked against GNOME Terminal (0.38.1), and the sequence is not handled there either.