XnView Software

I have been trying to insert 'Folder name' to the IPTC Caption field of multiple files and I have no problems doing this using:

'Metadata' 'Edit IPTC' 'Caption' 'Insert' 'Folder name' 'Write to all files'

The problem is that, the images have keywords which appear in both 'IPTC-IIM' and 'XMP' tabs ...