The problem is - on my version of Vue 7 , 'Always keep level' is replaced by 'Blur'.

I cannot find it (and I have been looking for it last night).

Edit: It must have been a late night - I just saw the option. The first highlighted item to the left of the panel. It looks like a sub panel but it is in reality 'Always keep level'.

I was able to Roll after unchecking it.

• agiel - www.linfa.net