[FFmpeg-user] How to create "Input #1", "Input #2" etc. in addition to "Input #0"?

[Stub]

Hello,
Can ffmpeg put various mapped inputs into different Input streams in the same container output file?
So far I only have created output container files, which only had "Input #0":Input #0   Stream #0:0   Stream #0:1   Stream #0:2   etc.
Can I also add to this container another input, like:
Input #1   Stream #1:0   Stream #1:1   Stream #1:2   etc.
If yes, how can I go about with ffmpeg?
Thank you.-SR.