How do I search for all files with a width value below a given number?

I want to search for files with various tag values (such as dimensions, particularly below a given value) so that I can then edit other tag values such as keywords?

Regarding keywords, how do I add a keyword without erasing existing values?

Hey Scott,

I see you have two options here. You can either choose files based on a specific value or sort the files according to a particular tag.

Let’s start with selecting files:

Here is to sort files:

Here is to insert keywords without erasing existing ones.