Convert CryptoMatte to normal EXR channels?

[Krion 1]

Hi,

 

I went and researched/bought the Affinity Suite today, because I decided I was absolutely done with Adobe and the way they (seem to) ignore their user base.

And I saw that Affinity Photo supports EXR editing.  So that was good.

 

But they don't support CryptoMatte yet.

So I was wondering if you guys knew of a way you could convert those CryptoMatte layers to normal EXR channels?

 

Thanks in advance!