Selection schemas can be added to the update:
As dictionary child elements, if for dictionaries added to update (including MDM dictionaries) selection schemas are set up.
As separate dictionary objects.
NOTE. Adding a selection schema to update is available only in the desktop application.
The expander ( + or - ) is displayed next to dimensions on the Repository tab if dimension has selection schemas:

After selection schemas are added to update, they will be displayed in the update structure.
See also: