Animate 'Title Background'

[Spade Studio]

Hi guys, I will try my best to explain what I would need to do in AE.

I also use Apple Motion 5 for some editions and has a cool feature:

When you are working on Final Cut Pro (similar to Premiere Pro) you import your footage and add graphics/templates on top, Ok. There is a feature when you are creating a template in Motion 5, which is an image that you can set it as 'Title Background'.

What this does is you are telling the software that image is going to be your footage in Final Cut Pro and you can animate it. 

I  know in AE / PP there are the Place Holders, but you need to add the footage from gallery, and is not taking the one you already have in your timeline.

Is there any way to set an image as the 'Title Background' to have a continuous animation from footage?

Let me know if you haven't understand my question, I know if you never used Motion 5 could be difficult to understantd what I am reffering to.

Thank you!

[ShiveringCactus]

I think you're probably describing the Expressions Control called Layer Control.  Adding this as an effect allows you to select another layer from the timeline.  It's slightly hard to picture how to intend to use it, it might be Essential Graphics is closer.  Can you post a screenshot?

[Mylenium]

Sounds like you're looking for the footage replacment options in Essential Graphics:

https://helpx.adobe.com/after-effects/using/replace-media-motion-graphics-templates.html

How you set it up in the first place is of course a whole different matter. Just adding the option by itself to a template won't do much when it's not correctly referenced inside an effect and/ or your composition structure is not built accordingly. You'd have to be more specific before anyone can advise on that.

Mylenium