Can you add packagizer option under

...then set
"add link as disabled"

Suppose you add 1 file with 2 mirrors. 1 of those mirrors is slow. With this new option, after link grabber processes the links and user click "start downloads" on link grabber tab, then on download tab there will be package and 1 mirror will be disabled.

This would be useful because sometimes the hoster sites you normally use are having problems. Then you don't have to go find mirrors again, instead they are already saved in jd package and user simply enable the mirror to start using it.