How do I make wall visible again? Exterior wall finish?

[chetgolfer]

Clicked on wall to make invisible but unable to find way to make visible again? Also, how do I make the exterior wall surface something other than brick or flat surface with paint?

[Roustaboutpusher]

Go to the library on the left of the screen, click on project tree and you will see your hidden wall highlighted in blue - click on the closed eyelid and it will be visible again.
In the same library click on material library and you can choose from ex. bricks - plaster - wall tiles - wallpaper and wood. You can also go online and search for seamless textures. There are plenty to choose from.