Here is a list of plug-ins for Premiere Pro. Some of these work in Premiere Elements also.
If you don't get more responses here, you may want to post your question to the free Community Forum at Muvipix.com. The experienced and friendly Premiere Elements users there may have more specific guidance for you.
You cannot use Motion Array title templates in Elements.
The only thing you can use is videofiles that are used as transitions (overlays).
Which specific item from Motion Array did you want to use?
You cannot use the templates as is in Elements
But If a template comes with a seperate videofile (in the zip) you can use that as an overlay or track matte in a transition. Such as the ink template.
If you are an absolute beginner with Elements I would not go that way.
Find some plugins.
Might want check out New Blue FX.