When you swap the High side from H1 to H2 will this change rotation on the secondary side?? Thanks.
No , but make sure you also change X1 & X2 because H1 & X1 always have the same polarity.
To change rotation, you have to swap the position of two of the legs out of the three that are available. You can swap two phases on the high side of the tx's or swap two phases on the secondary side of the transformer.