help on UV unwrap And where do i post my key board questions?

hi im having a problem finding the forum to post like where i can find the UV unwrap. cause when i press the U key somthing eles like this comes instead of UV unwrap :

Object & ObData
Object & ObData & Materials+Tex

pleas tell me how to change my hot key’s cause i need to change my U key to unwrap thx

You need to be in edit mode to UV unwrap. Select all the vertices first with A