Can't remove my bitfenix shinobi front panel

hi, I can't remove my shinobi window's front panel, if someone knows how, please tell me. Also I want to remove my optical drive panel in order to put a cover panel for my case, don't know how either. please help me, i'd really appreciate. Thank you in advance.

This what you mean?

my god, this video was right under my nose the whole time, I kept ignoring it since it wasn't the same model as mine, i've learned something today thanks to you :) I shall search more thoroughly