I forgot to add my Hopper, can I add it while my Pinter is conditioning?

Yes, it can be added during the conditioning. On this occasion, the required steps should be: 1) Hopper addition, 2) Agitate gently the Pinter (the remaining yeast will be resuspended at this point), 3) Wait 2 days for the yeast to settle down and the aromas to be absorbed by the beer.
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