They are listed in the Innovative Guide and Reference in alphabetical order and are also grouped according to their function. Web Options contain values in various formats and having Innovative Guide and Reference pages readily available is highly recommended (if not essential) when you are working with Web Options. The only common denominator among the multitude of Web Options, excluding added extensions, is that they must all be in UPPER CASE. There may be added extensions for indexes, patron types, scopes and languages.

Here's an example of an added extension for an index browse screen:

For BROWSE_t where the search results in a 245 entry, subfields |a and |b will be hotlinked:

But for all other Index Browse screens (Author, Subject, etc), subfields |a |b |e and |f will all be hotlinked.

Extensions may also be for patron types:

This means that patron type 199 can have 50 saved Preferred Searches, while all other patron types may only have 25.

As well as for languages:

This means that the Startover button will return patrons who are in the Spanish catalog, to the Spanish Search page. While the PSTARTOVER, without the extension, will take patrons back to the English Search page. The "/search" is the command link for the opacmenu page.

There is an extension for scopes as well. Scoped Web Options are a little different. The number of the scope is added to the token without an underscore "_" or a letter, as is done with language or patron type related Web Options. The below image indicates that scope 11 may have a different bottom logo (botlogo_s11.html) than all other scopes. See customizing files for Scopes.

For additional information, refer to the Innovative Guide & Reference, Page # 106858: Web Options.