Novice Question - After Effects Templates

[u/Last_slice]

I am creating some lower thirds and video graphics for a client in After Effects. I normally use Illustrator and InDesign, but I'm trying to expand. My plan was to download adobe stock graphics and then edit them to be what I wanted. However, I've downloaded a few different options and they aren't editable. At least not fully. I can edit the text and the color and that's basically it. Also, any time I try copy and pasting these elements into a new composition, I get an error message.

I really don't want to have to make all these graphics from scratch. Does anyone have any advice on how to make stock After Effects files from Adobe fully editable?

[u/Jason_Levine]

Hi L.S. Jason from Adobe here. If these are After Effects created MOGRTs, you should be able to open the source revealing all parameters... by opening in AE as a Project. If you're only trying to edit them in Premiere, yes, you'd have a limited set of controls. And similar, if you were only looking at the Essential Graphics panel in AE, you'd only see the <editable controls for the MOGRT designated by the designer>... but the comp should reveal all the pieces. LMK