We've all been there.
You're editing away and about to make major changes.
You decide to duplicate the sequence. Rename it V2 or whatever and crack on.
Only to discover (hopefully) that you've been working in the wrong one all along.
There must be a better way?
Guess what - there is!
This tweet from editor Mike Api got a "me too" responses precisely because we've all done it.
But it also elicited some really helpful tips and tricks for combatting this frustrating and sometimes disastrous problem.