Several MP3's to a unique one

Hi all!

I couldn’t find the way to record various MP3’s to a only one.

When I try to add mp3 files and then export them, I get the single mp3 but one over another.

The idea is to make them play one after another in a single mp3 file.

Any idea how to make this work?)

Import the audio files, then use the Time Shift tool to slide the audio of each track (except the first track) to the right, so that they are positioned one after the other, then “File menu > Export”.
If necessary, use the zoom tools to zoom out so that you can see what you are doing: