Site_Specific
There are nine 'Site Specific' set of reserved words (&site1 ... &site9), you set the contents via an option on the Lookup Tables on the Parameters menu.
Rather than having to remember what option 5 was you can allocate a description to each of the options:
Site_Specific_5 = Idexx NumberSite_Specific_1 = Our Fax NumberSite_Specific_7 = Opening Hours
The names will be displayed beside the option in the menu.