Mp3tag | Three files in one file

Hey dear mp3tag community,
I'm new here..
And I have a question:

Let's say I have three audio files. Is it possible to make an mp3 file out of it with the Konferter function? So that he lines up the three audio files one after the other and thus ONE audio file is created. does it exist

MP3tag only deals with the metadata in tags.
To manipulate the audio part you need an audio editor.

The "Convert" function in Mp3tag doesn't convert anything in the audio part of your Mp3. It converts only the metadata around your hearable song, like the informations about the artist, the album, the release year.

As @ohrenkino already wrote: You need an audio editor or any other tool you can find with Google to merge your audio files into one.