How do I localize audio tracks?

I can’t find any comprehensive guide or documentation anywhere.

So I import two Wav tracks. If I right click any of them and select Asset Localization => Create Localized Asset, I can select the language that is not default, and the engine creates a new asset folder L10N.

How do I indicate to which original wav-file this localized wav-file corresponds?

I don’t understand what happens when I press “Import Dialogue Wav for this Culture” in the Localization Dashboard, and what I need to put into the folder under “Raw Audio Path” and “Imported Dialogue Folder”.

So what exactly do I have to do to have Wav assets swap automatically when the culture changes, like it happens to text?

Thank you in advance.