Resizing panes in tmux can be quite difficult in default tmux, I use a set of keybingings to help resize panes in the rare occasions that I do need just a bit more space. I set the keybinding to the same as my split navigation bindings but shifted. They are very vim like (h,j,k,l).
# resize panes
#―――――――――――――――――――――――――――――
bind -n M-H resize-pane -L 2
bind -n M-L resize-pane -R 2
bind -n M-K resize-pane -U 2
bind -n M-J resize-pane -D 2
Most often when I need to resize panes I just grab the edge of the pane with my mouse. Yes the mouse, its not that often that I actually need to change the size of a pane.
# Enable mouse control (clickable windows, panes, resizable panes)
set -g mouse on
https://waylonwalker.com/tmux-nav-2021/
for more information on how I navigate tmux, check out this full post
Be sure to check out the full youtube playlist and subscribe if you like it.
https://www.youtube.com/playlist?list=PLTRNG6WIHETB4reAxbWza3CZeP9KL6Bkr
Also check out this long form post for more about how I use tmux.
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