Thanks for your kind message!
A rotation feature will come soon, and for a variation feature, I need some time first for another design phase. For now, I can say that I will probably encounter some obstacles and questions (e.g. can a furniture be both, rotatable and have variations at the same time?) that need to be resolved first.
So yes, a rotation feature will arrive soon, but for the variants, I can only give a 50% confidence level by now.