Thanks for posting in the community! Unfortunately, this is not possible because of the addition of Employee 1.1.1; it would be difficult to clearly represent descendants of vertically stacked employees. If you removed this employee shape from the chart, the third layout option will stack these employees vertically.
If this is something you'd like to see in the future, would you mind adding your thoughts to our feature request form? These ideas are passed along to our development team for their consideration and help them prioritize improvements to the product.