Ashley Snyder's article https://www.servicenow.com/community/...
It's best to create the new category and list records in the same application scope as the configurable workspace
sys_ux_list_menu_config = list menu configuration table
sys_ux_list_category = category table
sys_ux_list = list table
sys_ux_applicability = audience table
sys_ux_applicability_m2m_list = audience to list applicability table