Some caller called "centers press in" from a double pass through formation. I kind of knew that he wanted a cross trail thru in he center, but ..................
Unless something has changed that I am not aware of, I am under the impression that you have to be an end to be able to press in. He could have called press out or press ahead or back, but IN?
Press In|Out can be done by any dancer, anywhere, as long as he/she is not directly facing toward or away from the flagpole center of the set.