The Order of the properties for a wall opening are confusing and I know at least I spend half my time dealing with error messages cause I am inputting the right data in the wrong cell as I am following the same format as walls. IE specifying the top level is 0 from the Level and the base is 2000 above Level....
looking at the layout of the properties dialogue you will see the numerical part is Top First then Base, but then the level associate Base is first then Top.
Be nice to reorder this in the same way as walls are controlled
Base Constraint
Base Offset
Top Constraint
Top Offset
See screen shots of Wall Dialogue and Wall Opening Dialogue
Base Numeral
