I will ask 2 questions this time.
First
There are tons of questions here about tray icons in elementary but none of them work in my fresh Elementary 6.
One of them was like this:
sudo add-apt-repository ppa:yunnxx/elementary
sudo apt update
sudo apt install indicator-application wingpanel-indicator-ayatana
But it didn't work. I had error like this:
The following packages have unmet dependencies: wingpanel-indicator-ayatana : Depends: libwingpanel-2.0-0 but it is not installable E: Unable to correct problems, you have held broken packages.
Then tried Namarupa but it didn't work too.
How can I fix it on Elementary 6?
Second
I don't like double-click in file manager of pantheon. In Elementary 5(Settings>Tweaks),there was a option for it but in Elementary 6 I couldn't find it.
How can I enable single-click?