Can I Import a Sequence From Another Project?

I want to take a sequence from one MPC Studio project and use it in a separate song/project.
I managed to export the sequence files to where I can see them in the browser’s sequence list, but they don’t appear in the current song/project.

I read about manually importing, but I don't seem to be able to find that procedure.

You literally just load the SQX file into your project via the browser, just like you would load any other file.