when i ctrl shift v to mirror the pose it works but it does not save any keyframes so the mirrored pose is lost when i go to a new frame

i am copying the pose of the right foot to the left but when i do that i have to then manually select the left foot and hit i to add keyframes then i go to a new frame, select the right foot copy the pose in the view port then ctrl v then select the left foot and i. is there an easier way to do this?