Using struct json output - how to get all tags

[sebutzu]

I am using -j -struct options to get the tags in JSON format. What groups should I use to prevent duplicates from being excluded in the output? I assume -G:0:1 is not enough?

[StarGeek]

From the docs on the -j (-json) option

The -a option is implied when -json is used, but entries with identical JSON names are suppressed in the output. (-G4 may be used to ensure that all tags have unique JSON names.)