Reply to Hello. confusions after updating Trator 2.6

Hello guys. I am very new to DJ world.

I bought MF classic and 3D
I dont know how to setup both and what i can do with them. did i just waste my money for it?
also, I'm having hard time for mapping 3D

it seems very hard to me compare to classic.
I did everything on video and it does not work.

anyone can help??

also i updated to traktor 2.6 and on the display it does not show my comments that used to show keys.

Thank you so much~