Make Define Pattern available in Layer Masks and other channels

For some reason Photoshop does not allow to create a monochrome pattern of a selection in a Layer Mask.

But once in a while I like to use a pattern for e.g. an adjustment, or alpha.

Please make this work.

ps

'Topics help users find your post. Please select one or more topics.'

But none of the topics applies - I just slected all, because choosing is mandatory.