You can search the Uniclass Work sections content set and add Activity, Product and System clauses. If you have added an activity or product clause to your spec and you want to find the systems they belong to, you can do this with the 'used by' panel in the guidance.
Manufacturer application guidance We encourage the specifier to consider the suitability of manufacturer products when they specify them. Specifiers should read the manufacturer's guidance to ensure that the product is suitable for use in that particular parent system. For example, an insulation slab from a particular manufacturer may be suitable for a floor but not a wall. Related: What is the Products panel Related: Specifying construction products