nothing wrong being new to this hobby of us. The missing arrow keys, better said function is "outsourced" to a second layer, and some other functions, too.
You've to hold down the Fn (Function)-key, on the right side of the spacebar and WASD for example to trigger the arrow keys.
Some people prefer dedicated keys, other like a minimalistic keyboard better, to each their own.
Manual for this mk and Fn layer: https://www.scribd...