From everything I've read, I SHOULD have an option under preferences to open new terminals in Tabs, and ctrl-alt-t should open a new tab, not a new terminal - but I'm missing that option :(
When I check my gnome-terminal version, it's coming up as 3.28.2, and I thought tabs were introduced back around version 3.10(ish).
Any suggestions? Can I reinstall my terminal or something? I learned (eons ago) on a large Unix system back in college, but it's been a lot of years on windows, and I'm just finally coming back, so I'm rusty at all of the things right now :P