What happened to the curved walls...

...and some other useful functions that used to make this app such a delight? I cant make a curved wall any longer. A comprehensive "help" section would not be asking for too much, would it; and how come I cant restore my previous purchases?
The general idea is to improve software over time, not to lessen its usefulness.
Come on guys, youre better than this!

Angry Arc about Floorplans Pro, v2.3