Licences for Video templates for myself and clients

After reading the licence agreements and the FAQ, I’m still not sure what’s right to do.
For example I want to use lower thirds Video templates for social media.
If I create an end product with this template (add logo, change text and colour) and render a file with alpha channel. Is this an end product, which I can use for all of my videos? Or do I have to licence every Video I create with this template seperatly? And if yes, does every licence has to be named so you know which video it is for (or is “Instagram Video 456” ok?)

2: If I create a video with a lower third template for a client, how does this limited sublicence look like? Is it just something I write? I didn’t get that.

Thanks for your replys :slight_smile: