Dynamic Tags
Select a Value from the Dynamic Tags feature of the Dynamic Tag field.
WARNING: this is NOT created to use as Media select, use the Dynamic Tags feature to generate a Dynamic value. The Dynamic Tag setting must become Dynamic like this (you can use Token or any other Dynamic Tag)
Status
You can compare the Dynamic value with multiple comparison operators:
Not set or empty;
Valorized with any value, the opposite of the previous condition, so the Dynamic Tag is not empty;
Less than;
Greater than;
Contain;
Not Contain;
In Array, useful only if the Dynamic Tag return an array (like an ACF Gallery or a Token Query);
Equal to;
Not Equal to.
Value
Most of them require a Value to perform the comparison.
You could also use a Dynamic Value that uses its own Dynamic Tags.
Examples
Dynamic Tags Token with value
[query:post]if Empty display an Element only if no posts are published;Dynamic Tags Token with value
[query:post|count]if Greater than a numeric Value: display an Element only if there are more than x posts;Dynamic Tags Post Date if Greater than a date Value (in the format
"Y-m-d H:i:s"): display an Element only if Current Post published date is more recent than the specific date;Dynamic Tags Token with value
[post:content]Contain a string Value like "DCE": display an Element only if Current Post is talking about DCE;Dynamic Tags Woocommerce Product Price is Less than a price Value: display an Element which a message that could be applied to the shipping costs;
Dynamic Tags Request Parameter in Get Equal to "yes": display an Element only if in page URL there is the get parameter value "yes".