Change export folderpath

Is it possible to alter the export folderpath?

I am currently working from
\\?\unix\Volumes\Music\Original\iTunes\iTunes Media\Music\

and wish to save the export to
\\?\unix\Volumes\Music\PNTemp\

saving in the album subdirectories

Also, can the covertart be exported with the export script, and what is the variable for it?

Instead of variables for the path, you can use string constants and an absolute path. So instead of
%_folderpath%\%_filename%.txt
use
\\?\unix\Volumes\Music\PNTemp\%album%\%_filename%.txt

And no: covers cannot be exported with the text export. You have to use an action of the type "Export cover" and enter the required combination of variables and string constants to save the covers in the correct folder.

That worked perfectly, thank you.

How can I import that? I have tried using
\\?\unix\Volumes\Music\PNTemp\%albumartist%\%album%\%_filename%.txt
and
\\?\unix\Volumes\Music\PNTemp\%albumartist%\%album%\tags.txt
but it won't work

As there are no variables set for reference, you get an invalid (i.e. not matching) filename.
You have to use a (fully qualified) filename without variables.

Does that mean I have to import tags for each file individually then?

Depends.
If you create one export file for all files in the collection and you have the filename as one part of the record then you can import the data from 1 export file for many (selected) files.

If you create one export per folder for all the files in that folder, you can at least import the data for all those files.