I'm looking at this one. I read the Q and A section and it says the cranks can be rotated while the legs are down. One person even said they even sat on the bike while the stand was down. I would never do that due to the possibility of crushing the chain stays, but it was an interesting testament to it's weight capacity.
https://www.amazon.com/gp/product/B0...k_ql_qh_dp_hza