>>107739120
For GUI Emacs, I've added these bindings to make tabs feel more like other programs that use tabs. (<prior> and <next> are PgUp and PgDn for me.)
(keymap-global-set "C-S-t" #'tab-new)
(keymap-global-set "C-<prior>" #'tab-previous)
(keymap-global-set "C-<next>" #'tab-next)
This doesn't work for terminal Emacs, because most terminals already use those bindings for their own tabs.