Build 1332 was a complete mess I can't recall if it had any of the new file transfer rules in place but if it did it could cause a bit of havac as the rules changed a bit from the original design.
After looking into this it looks like you stumbled upon several bugs.
1. The legacy code to import the old rules is being triggered when you delete all of the rules. thats why the list keeps getting re-populated.
2. The conversion from the old rules to the new somehow I managed to get upload and download reversed.
3. you should of been able to press the del key to delete each entry, somehow it became unmapped.
I'll fix these issues in the next build.
The reason for not having in-line editing is because it caused a bit of confusion with some testers.
Usability is important and confusion is something we try to avoid
