XnView Software

I have just added keywords to about hundred image files, just to find out it was the wrong set of keywords. Can you delete IPTC data from multiple files at the same time?
I have tried about everything, but it does not seem to work. I have discovered that you can select multiple files, delete IPTC ...

When you write a keyword i the keyword field, you need to hit the "Add" button to add the keyword to the list. I think it would be a great improvement if you can add the keyword by pressing ENTER after you have written the keyword.
- Thanks for a great piece of software