Go to Key Bindings in Settings. On the left hand side are the commands you are going to bind those special function keys (they have blue icons on most laptop keys) but the actual command is XF86MonBrightnessUp and XF86MonBrightnessDown to increase or reduce the brightness, respectively.
If you look at that Dialog, there are single keys you can bind like standalone keys e.g. Menu or Context or Super key. There are also two-key combos e.g. ALT+F10 ALT+F11, etc which may have a related action out-of-the-box, but these are not carved in stone and their corresponding action e.g. Goto Workspace Left can be replaced with NudgeWindow left by x (Be sure to fill out the parameters required, so look closely at the parameters needed, like distance x pixels) The devs (The Enlightenment developers followed by the Bodhi team) did not dictate what those keys will do, but they offered their suggestions by examples so you will realize what they are capable of. For instance I want a key combo to make a window JUMP to the workspace on the right, but a different combo will simply nudge it on the screen by 20 pixels. I had combos to make a browser shade up, or shade left (theme-dependent though; they must have window borders)
I'll just wait for the video from birdmun unless youtube has them already