[FFmpeg-user] Copy all subtitle streams? Possible?

[Mark Filipak]

'-c:a copy' or '-acodec copy' will copy (all?) audio tracks. I have 2 questions:
Do I need to also specify a '-map' directive? and
Is there an equivalent directive for copying subtitle streams?

I have searched throughout the docs and on the net until my eyes are blurry.

(I must confess that I'm still somewhat mystified by the '-map' directive.)

Thanks much,
Mark.