Exporting Layer sets, Defaults, & Wall Types - X17

[DeLayDesign]

I haven't needed to do this in X17; until today... and naturally I can no longer find the options to export my layer sets, defaults, and wall types.  I've opened a support case with Chief, but does anyone know where they moved this feature to and/or why they removed it?

It is a valuable feature for me when I'm working with outdated darwings.

[DeLayDesign]

Looks like the function to export has been removed, but the import is still available by selecting a plan file instead of a specific layer set, default and/ or wall types file.