RB's Split Out as WR

Players like Marshall Faulk routinely split out as wideouts. I would like to duplicate this. However, from what I have seen, all RBs have a 1 position skill for WR. I have a specific team where my RB has better receiving numbers than my #3 and #4 WR. Can we implement a feature where some RBs with high Catching rating, etc, can have a Position Rating for WR's?