In ASOsamp.Sample, the Measures dimension is tagged as accounts. Therefore, as a dynamic hierarchy, Measures includes only one stored level.
Adding the child member All to Ratios does not change the number of stored levels in the Measures dimension. Saving the outline triggers a light restructure.
In ASOsamp.Sample, Income Level is a stored hierarchy dimension.
Adding a child member does not change the number of levels (two) in the hierarchy. Adding a seventh or eighth child member at the end is allowed; however, adding a ninth child member crosses the power of 2 boundary (see Addition of Child Members), requiring a full outline restructure.