In a few workflows we have, we need to have the same columns after we perform crosstabs regardless of whether there were any values that matched. So, we might have a Likert scale of 1-5, and we're trying to see the percentage of each response for multiple questions, but with a small sample size, maybe no one answered with a '4', and so the Cross Tab tool does not create that field, but the next time the workflow runs, it could be a different field that goes missing:

Is there a way to just create any of the XRow fields with null values only if they don't already exist?