Re:Designers read this and developers will love you
by tedmiston on Tuesday March 13, 2012 @07:08PM
(#3700789)
That's a good description. Layer comps are one of the most underutilized PS features IMO.
I've used them myself to design alternative navigation styles for a site. For example, since the bulk of the site is the same, I managed a sample horizontal navigation in one layer group and a vertical navigation in a separate layer group. Layer comps allow you to progress on these simultaneously.
I've also used them as "snapshot" states before if I'm trying something experimental. It's a faster way to rollback than a chain of undos, etc.
For example, a navigation interface, complete with hover and selected states can be all done with the same text and icons (say) if you have a vector shape layer for icons, and then apply separate appearances for each interaction state.
The example you give can be done as simply as toggling the visibility of a layer you don't want to see, and moving other elements up to fill the void appropriately, then saving this as a separate comp.