Layer alpha channel promote to mask?

[Mark_A]

Create an adjustment or live filter layer, and it has an alpha channel - used to selectively modify the adjustment.

Looking in the channels panel, the alpha channel is listed and has a thumbnail rendering of itself.

Is there a way to promote that alpha channel to a mask that can then be duplicated and applied to other layers?

Thanks

Mark

[Dan C]

Hi Mark_A

If you right click on the filter layers alpha and select create mask layer, Affinity will create a new mask layer that contains the filters selective adjustment. This can then be nested within another filter, such that they have the same selective masking. 

[Mark_A]

Ah! thanks for this. The four channels above it, with control-clicks, behave in a different way and had led me astray. I was then control-clicking on the adjustment alpha channel's icon and that's inert. I needed to click to the right of the icon.

Mark