I have a graph builder chart where I have multiple column switchers

I've set their orientation to horizontal by right clicking on the maximize/minimize arrow and selecting this for each one:

However, the script for this customization is not retained when I save the chart script for later use. I see that there is this option in the scripting index:

but not sure how to apply it to just the column switchers (don't want it applied to the local data filter). Thanks for any suggestions!
Steve