I do not think the seo options are on the import ? maybe somebody can clarify that,
where it is is in edit category in categories
https://www.flynax.com/manuals.html you can download a seo guide from your account that may help
with the specifics, yes they are list fields if you want to use all of that. not sure of a fast track for it, but once LF are built one they are easy to add / use / implement.