Can't add a second layer lens effect

Good morning,
I have updated various to the latest version, but in the frame buffer I cannot add a second lens effect layer, so that I can control the effect of the lights separately, which defeats the purpose of adding the cryptomatte mask in the lens effect.
Thank you very much, best regards.​

V-ray 6 update 1 for Mac.

Hello, Luca,
To the right of most layers’ Properties tab you can find an “Add new mask layer” button. Hope this helps!

We will update our online documentation to include info on this function. Thank you for bringing it up!

Hi Peter,
I meant the possibility of having several layers of lens effect so that the effect can be managed for each individual light source.