https://usermanuals.finalemusic.com/FinaleMac/Content/Search.htm?q=audio

https://usermanuals.finalemusic.com/FinaleMac/Content/Finale/Audio_Files.htm?Highlight=audio

Finale's audio options include the ability to add an audio track to your document suited for either recording a live performance or inserting an external audio file.

Finale is not a DAW. You can export to a DAW (MIDI or MusicXML if supported by the DAW) for adding audio tracks or sync a DAW to Finale 25 via Rewire.

https://usermanuals.finalemusic.com/FinaleMac/Content/Finale/What_s_new.htm?Highlight=rewire

Thank you very much for your comment, Mr. Halloran.  It helps much.

I agree that FINALE is not a DAW and much appreciate its ability as a notation/engraver software.  However, I thought that, if I can attach several audio clips onto one (or two favorably) track(s), I can first arrange those clips then write music, in a sense, to correspond to such audio clips and also adjust the music and the audio easily thereafter. 

My image is Schoenberg's "The Survivor of Warsaw".  Schoenberg wrote his sketch on a paper with pencil, but, if I could put real audio monologue on the sheet music of FINALE, I think, the composing such type of music would be much easier and smoother than a century ago.  Consequently, it could broaden the scope of FINALE and contribute to its ability. 

The best you can do in Finale is attach a stereo audio file. 

https://usermanuals.finalemusic.com/FinaleMac/Content/Finale/db-audio-clip-attributes.htm

Again, Finale 25 has Rewire support for syncing a DAW. You could use that to generate multiple tracks in sync. Then you can bounce them to stereo and attach that to your Finale doc. 

Thanks again, Mr. Halloran.  I will try Finale 25's Rewire capability.