We now have an upgrade that allows you to adjust the opacity of your action all at one time. Elements uers can not have groups, so we made all of our actions without groups to start off with. However in an effort to save our Photoshop users time, we have changed the Photohop version of the actions to include the groups for free.
If you have purchased your photoshop actions from us, and want the new actions with the upgrade please email us at firstname.lastname@example.org include your paypal email address that you used to purchase your actions.
If you already feel established in your workflow, then don't worry about this update, as it doesn't affect the overall functionality of the actions. Or if you decide to just do it once in awhile in an established workflow, simply click the top layer and the one just above the background layer (while holding down the Shift key) and then click ctrl. (command on a Mac) + the G key and it will make a group. You can open and close the layer to edit individual layers, or close it and adjust the opacity together.
Again, this is only for Photoshop users, not Elements.
Please note that all future purchases will have this upgrade.