Photomerge Panorama has been a command within Photoshop Elements for many years now. It has been improved in more recent versions.
I take a lot of action photos of my granddaughters playing soccer. I also take a lot of photos of other sporting events. Normally, I use the Burst/Continuous drive mode and the Shutter Preferred (Tv or S) shooting mode. My shutter speed is generally around 1/800 sec or above, and I generally do not use a tripod.
After a photo session I end up with a large number of photo sequences of a specific action, such as kicking a soccer ball, for example.
A few days ago, I watched a video that showed how you could relatively easily merge a series of photos into a single time-lapsed image. Sometimes this technique is called multiplicity. This video shows how to do it using Photoshop’s Scripts, which basically stacks the sequence of images on different layers and then aligns them. By adding a Layer Mask to each image, the technique allows you to end up with your prime subject in different positions in the combined and final image. The technique did include multiple steps, but was quite straight forward.
Photoshop Elements does not include Scripts, but since PSE 9, it does have the capability to add a layer mask to any type of layer. So, I figured the Photoshop technique could be adapted to Elements with just a few more steps. As it turned out, it proved to be far easier to do in Elements by using the Photomerge Panorama command.
By the way, Photoshop CSX also has a Photomerge Panorama command, which could also be used. As is generally the case, I suspect using the manual approach in the Photoshop tutorial may allow for more flexibility.
To give you an idea how easy it was for me to apply the Photomerge Panorama technique to end up with the photo above, I posted a video on YouTube on how to do it.