When Tabby terminal is opened it opens by default with 1 Window and can be created N tabs, if that window is closed with the x icon (there is no other way - perhaps some plugin to install? - pls let me know)
If later Tabby is re-opened it opens the same window with its respective tabs. So far all ok. It is configured at:
Settings
Terminal
Startup
Restore terminal tabs on app start (on)
How to accomplish the same goal but for N Windows? Do your own experiment with 2 Windows at least
I think you’re going to have to RTFM mate (Read The F’ing Manual)… I haven’t used Tabby much at all - I kinda hate how it treats opacity / transparency - iTerm2 on MacOS and GnomeTerm on Linux are much better IMHO…
And I did do many experiments, read the keyboard shortcuts … but when is not possible even with some research on Google I create the post here … because the “experience” of other member can indicate to install a specific plugin that resolve this situation