title: Photoshop - How to link layers visibility (not position)?
body: <p>I have a photoshop file with a set of layers. </p>
  
  <p>Is there a way that I can link "layer visibility" without having to click and unclick on the eye icon of each layer individually? For instance, I would like to set up instructions such as: 
    -If I click on the eye icon of layer A, activate the eye icon of layer B, AND C, AND D simultaneously...
    -activate the eye Icon of layer A OR B OR C... but don't allow to have more than one visible layer at the same time...</p>
  
  <p>Grouping layers does not fit my purposes because I want to do that between layers that already belong to different groups.</p>
  
  <p>Thanks!</p>