Hi sorry to bother but I would really like to know how to do a subpatch please?

this might be what you want

[pd subpatch_name]

then open it and patch away

you may need to look at
[input] and [output]

I think, agent, you meant [inlet] and [outlet], rather than input/output. the [let]s allow you to transfer messages in and out of subpatches. there is of course, [inlet~] and [outlet~] for passing audio signal.

apologies for my rude correction! I do this for pd.

you are correct sunji thanks.
(this is what happens when I post from class)