As I wanted to learn Linux better, after using Fedora for a while I installed Arch Linux. Install was ok and working fine. But while I was installing KDE desktop environment, I didn't choose default(all) option, rather I choose randomnly a number for every step. KDE got installed and working. However I didn't used KDE before. I'm suspecting everything didn't installed. Did I made mistake choosing a random option instead choosing default? Can I install those packages for KDE?