Comment 4 for bug 1584837

Wait for griker I should think.

The problem is, he is the one who wrote pretty much all the catalog code, and he basically retired and hasn't been seen since June 2014, see: http://www.mobileread.com/forums/showthread.php?t=240540

So if and when he does return... we have no idea when that might be.
A number of bug reports have come in during his absence, without being fixed. :(

...

You may be in for a wait.