How to setup variance for multiples aovs in multichanel exr ?

[ashley.handscomb.retallack]

This isn't currently possible, as MtoA doesn't allow you to have two AOVs with the same name.
We are looking in to this for afuture release

[idizdar]

Thanks for your answer, but this is what I read in the 5.1.1.0 core release note :https://docs.arnoldrenderer.com/display/A5ARP/5.1.1.0

"AOVs are now fully denoised individually for increased quality at the expense of run time. Also, per-AOV variances will be used if present. Every RGB channel to be denoised will benefit from an associated variance AOV."

It seems to be possible but not explained.