In the amidah during Birkat Kohanim

Hi,

One who is reciting the amidah (shemoneh esreih) when the kohanim begin their blessing (birkat kohanim) should pause until the blessing is over. If he is standing along the wall of the aron kodesh, so that he is behind the kohanim, he should move to be in front of them.

(Rav Moshe Feinstein, Igrot Moshe Orach Chaim 5:20:23)

חג אורים שמח,
Mordechai