Main idea:

we can't link-panes, but we can use tmux nested & linked-window to achieve our goal. Here is how.

Step 1

Create the session that will manage the linked panes

• create new session named shared

$ tmux new -s shared

• run waht you want, just for sure

$ top

Step 2

Create the session that will contain the linked-panes, this is your main session

• create new session

$ tmux new -s main

• split pane

Ctrl+b "

• access first pane

Ctrl+b q 1

• unset $TMUX so we can nest sessions

$ unset TMUX

• create a new session within the current pane from now on Ctrl+b will access the parent not the nested session

$ tmux new

• remove status bar from the nested session

$ tmux set status off

• link window 1 of the nested session with window htop of the shared session, kill the existing pane to avoid conflict

$ tmux link-windows -s shared:0 -t 1 -k

That's it.

Attach to the shared session from another machine, at the same time.

tmux a -t shared

Cleanup

• kill the nested linked-pane, for your main session

Ctrl+b x
y