I've tried to set up plank on three monitors but without success.
I parsed these answers also: How can I have one plank on each of my monitors, How to duplicate the taskbar on the second monitor on Loki?
What I did:
change settings in
[dock1, dock2, dock3]
copy configs of the dock1 to the dock2 and dock3:
cp -r ~/.config/plank/dock1 ~/.config/plank/dock2 cp -r ~/.config/plank/dock1 ~/.config/plank/dock3
sudo killall plank
At the end I got nothing. I tried to log out but nothing was changed, only one plank on the main monitor was present.
Could you please explain how to do this on Juno 5.0? Any help is really appreciated.