I like KDE and prefer it to Gnome but when I was a Gnome user I got used to the Gnome desktop switching. This is a short tutorial on how to set up the shortcut keys in KDE so it feels like Gnome.
Opening System Settings
Open the system settings:
All Applications > Settings > System Settings
Open up the shortcuts:
Common Appearance and Behavior > Shorcuts and Gestures > System Settings
Click Keyboard Shortcuts then select KWin as the KDE component in the drop down menu.
Setting the Shortcuts
You can set any shortcuts you like but the ones in this tutorial are to emulate Gnome desktop switching. To set the shortcut you click on the row you want to edit the shortcut for, click custom, then the button which will record the shortcut. The button with the x will clear the shortcut.
The following shortcuts will move to other desktops:
Switch One Desktop Down > Ctrl + Alt + Down Switch One Desktop to the Left > Ctrl + Alt + Left Switch One Desktop to the Right > Ctrl + Alt + Right Switch One Desktop Up > Ctrl + Alt + Up
The following shortcuts will move the current window to other desktops:
Window One Desktop Down > Ctrl + Alt + Shift + Down Window One Desktop to the Left > Ctrl + Alt + Shift + Left Window One Desktop to the Right > Ctrl + Alt + Shift + Right Window One Desktop Up > Ctrl + Alt + Shift + Up
Click apply and test it out.