Yes it is possible, you just need to use another provider: https://world.episerver.com/documentation/developer-guides/CMS/globalization/localizing-the-user-interface/ 

you can even use XPath backed by database ;)

Thank you, But my question is how do I point to another translation from/to an Add-On? So if I for instance would like to have it on a external CDN or similar? 

Hey,

How do you imagine to use this from the add-on? From dojo or from C# code?

I think from dojo, you could have a js that you load as a dependency, take a look at this, I am loading a css, I don't know if js would be considered as a security issue: https://github.com/mariajemaria/FontAwesomeIconsDropdown/blob/master/ClientResources/Scripts/Editors/AwesomeSelectionEditor.js

BR,
Marija

I would then at least consider how to workaround origin subresouce integrity for this case :) otherwise, as you said - it's security issue.

Hi all,

Thank you.

The reason was actually most from the admin section, if we on the "fly" want to alter some text then it could be good to have it placed externally and then pull relevant text on load

If you wanna change texts on fly, then I would look at for instance database driven localization provider (instead of xml files).