Yes, it is. That's why we're displaying the From / To boxes. At the end of the From box add
At the end of the To box add
In general, you can add any From / To pairs you like e.g. dog / cat. The data replacement step operates on all text and serialized data columns without assuming anything about the content type of each column or the meaning of the From / To pairs. It's a dumb string replacement. The only remarkable thing about it is that it can actually operate on serialized data without having to go through cumbersome and potentially dangerous regular expressions.