In Photoshop Elements, how do I expand a layer group to see the layers inside? I mean "Register form" or "login form" in the following screenshot:
Well, upon some investigating, it appears that this is an intentional limitation of Photoshop Elements. As of PE10, there is still no support for layer groups. So you'll need someone with Photoshop to remove all layer groups before saving, as PE won't allow you to edit individual layers inside a layer group.
Luckily though, someone has made, for PE7, a set of actions that allow you to work around this missing feature. This should work for the latest versions of Photoshop Elements.
Unfortunately, this is the nature of crippleware. I'm not a big fan of this sort of sales tactic. I much prefer adding extra features to premium versions rather than stripping basic features to free/cheaper versions.
Maybe if there's enough customer outrage, Adobe will relent and add this basic feature to PE11. Something like this did happen with Aptana Studio Community Edition—SFTP support was removed in a later version, and even the community-supplied SFTP plugin was removed from the update repository. However, this understandably upset a lot of community members since it basically forced community edition users to use FTP, which is incredibly insecure and a very outdated practice at this point, so eventually Aptana relented and re-added SFTP support by default (a decision I applaud them for).
There are at least a couple options I know of for grouping and ungrouping:
Cheap option ($12): http://simplephotoshop.com/elementsplus/