Sounds like something I would do either with filters use the else[] 
operator, or with nested <$view> widgets (where the content of a view 
widget is only displayed if the target field is absent).

https://tiddlywiki.com/#ViewWidget

Hard to be more specific without seeing your code.

On Sunday, January 3, 2021 at 1:32:35 PM UTC+1 [email protected] wrote:

>
> I have a working macro, but just realized that the field it uses is 
> sometimes not present. There is an alternate field I would like to use in 
> its place. I also need to use a 'dummy' result if *both* fields are not 
> present.
>
> My dozens of searches through TW documentation and this group have so far 
> proven futile. Could use some help...
>
>

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