Pathfinder community sheet : reuse buffs from other characters

When i create a buff for a character (let's say for power attack, with references to BAB in formula), is it possible to copy/paste the buff to another character as a whole thing? Or is it necessary to copy/paste for each field ? Is there a way to include it in the common buffs, or generate a personal library to import buff from ?

If you open a custom buff with the cog, you can send the buff to chat by clicking on the eye icon.  You can copy/paste from the chat output.  However, that only works if the buff is just a straight numerical bonus.  If you are using calculations in your buffs, the output breaks.  I find it is easier to keep a text document saved on my computer as a "cheat sheet" of buffs.  You could also post them in a campaign forum post or save them on a handout, if you wanted everyone to have access to them.

Thanks for your answer. I don't see cogs in the community sheet. But anyway, since it was mostly to reuse "complex" buffs it wouldn't work. The handout to share is a good suggestion.

Oh, that is my reading error.  I was thinking of the "by Roll20" sheet.

You need to recreate them for other characters.