Perex

Hello, in my singleplayer world i wanted to build my first house and i soon saw that i can't change between the different kinds of the walls/roof/fundament. If i hit "T" nothing happens. In the bottom right Corner are the different types written and that i can prress "Q" but there was Nothing with an "T". If someone could help me would it be very nice. sorry for my bad english and if i've written this in the wrong part of the community.

Hello, in my singleplayer world i wanted to build my first house and i soon saw that i can't change between the different kinds of the walls/roof/fundament. If i hit "T" nothing happens. In the bottom right Corner are the different types written and that i can prress "Q" but there was Nothing with an "T". If someone could help me would it be very nice. sorry for my bad english and if i've written this in the wrong part of the community.