Multiple Monsters

Let's say I have 12 of the same type of bad guy.  Further, let's just say they are orcs.  I have entered all the "orc" data into the character sheet and it is ready to go.  I already know the "link" and then "unlink" trick for the bubbles, so this is not that question. If one orc has a Ray of Enfeeblement effect on him, another has Slow on him, two more have entered Rages, etc. (basically each has a different Stat altering effect going on), I would prefer that Roll20 accounts for these.  Am I correct in assuming that I will have to have 12 versions of the same character sheet?  (Basically a "master" and 11 copies) Is there a script out there for a fast duplicate of these?

You can duplicate the character sheet from its "edit" view.  But if you know upfront which stats are going to be changed independently, and you know that there's at most three of them (e.g. you know the only things different between the orcs will be their HP, strength, and AC), then you can use the token bars.  Link the bars to the stats to get the initial value, then unlink them so they don't change the attribute on the charsheet, and reference @{selected|bar1} (or 2 or 3) in the relevant macros.  You can get up to six (albeit with somewhat less convenient access to three of them, and the graphical annoyance of having actual bars show up) by using the bar maxes as well.

I thought about setting the bubbles to the most adjusted attributes (hp, +att, +dmg), but there are so many "edge" cases that I might just duplicate the character sheets from a "master".  Thank goodness for folders.  I will just have a "Monster Master" folder with all the masters.

I just put icons on them.