In this article i will show how to make new keyboard shortcut for making screenshot, Lubuntu has default program for such making screenshot but on this article i will use deepin-screenshot because has some advantages. Follow simple instructions bellow :

  1. Install deepin-screenshot : sudo apt install deepin-screenshot -y
  2. From the start menu search for “Shortcut keys” or from terminal type lxqt-config-globalkeyshortcuts. it will show new windows application for making new shortcut, like pic bellow.
  3. Then click Add button. it will show new windows -> Click on Shortcut field -> type keyboard combination you want as shortcut, i use Meta+S (Meta is Windows logo on the keyboard)
  4. Your Shortcut has been created, and ready to actions.

Article reference : https://askubuntu.com/questions/1272177/print-screen-key-not-working-on-lubuntu-20-04-1