How to Install VirtualBox Guest Addition Tools in Linux Manjaro 18.0

Step by Step video on How to Install VirtualBox Guest Addition Tools in Linux Manjaro 18.0.
# How to enable drag and drop in linux manjaro VM
# Copy text from host computer to virtual machine

[teknolojigundemi]

Dear Noob, thanks you for video. I am newbee at Linux. I install Virtualbox 6.0.4 to try Manjaro KDE before install old Dell Laptop. I have some problems. My screen resolution 1920*1200, nvidia graphic cards but Manjaro stuck 800*600. I searched but couldnt found a working solution. What is Virtualbox Guest Additon brings beside copy paste bi-directional?