@andrew84 - ah, yes, that would be even handier - I use pretty much everything else, so had not thought that wide.
If the messengers would behave as they should I wouldn't really mind, but since they seem to turn on whenever they feel like it I need them gone.
I'm currently tweaking out Vivaldi to see if the Tab Stacks suit my needs and how the browser performs. It may be that I won't have to worry about Messengers at all very soon. I may miss certain other aspects of Opera, but I'll be able to focus better on the tasks at hand without interruptions and that is the primary goal.