Select child layer separately from parent layer

[LLM]

I have watched and re-watched the video Clipping vs Masking by James Ritson and am unable to select the mask (child layer) without the layer. Clicking one selects the other.  (ditto for a clipped layer)

That is not what I see happening on the video as is done at 2:07 min on YouTube video.  https://www.youtube.com/watch?v=cKrQ2BEFWMs

This is similar to another question in the forum but the difference is that I don't want to separate the child layer from the layer, I Just want to manipulate each separately.

    Here is a quote from the other post by webb, "I have a pixel layer (say, Background) and have added a child filter. I would now like to move that child filter up on the stack, but can't seem to select it without selecting the pixel layer as well--both parent and child layers are highlighted and stubbornly insist on staying that way. This doesn't happen all the time, but when it does happen, I don't know what to do."

[R C-R]

Click on the thumbnail of the child layer (the small icon in the Layers panel) to select it. Look carefully at what he clicks on in the video at 2:21.

[LLM]

Thank you.,  I watched it several times and missed that.  Now I can use them the way they were meant to be used.  I appreciate your quick reply