Guides for functions with arguments only used in one of multiple use cases

[shaedrich]

There are functions with arguments which can only be used when

• Another argument is used as well
• Another attribut has a specific value

Should there be guides to explain when to use which argument, so the doc itself stays in order? Should arguments get labels like "CF9+" if they depend on another argument or it's value?

Relates to #530 #517

[pfreitag]

See issue #525 I suggested a possible solution adding position and required-when option to the params object

[shaedrich]

I think of functions like cfpdf and cfloop which are more complex and cover multiple very different cases.

[shaedrich]

In some cases it looks like a completely different function so maybe we could use an url param to show/hide params and syntaxes depending on mode.