Function: merge-tabs
merge-tabs is a function alias and interactive for tab-bar-merge-tabs,
defined in tab-bar.el.gz.
Signature
(merge-tabs &optional TAB1 TAB2 VERTICAL)
Documentation
Merge the main window of TAB2 into TAB1.
Split the main window of TAB1 and make the new window display the main window of TAB2. Both TAB1 and TAB2 must be tab numbers. If VERTICAL is non-nil, make the new window below the old main window of TAB1. Otherwise, make the new window on the right of TAB1's main window. Interactively, VERTICAL is the prefix argument, TAB1 is the selected tab and TAB2 is the recent tab. Close TAB2 if the merge completed successfully and return TAB1.
Probably introduced at or before Emacs version 31.1.
Key Bindings