Currently, Huggle 3 does not support for category scans, which means it is not possible to populate the queue with results from a specific category (eg. pages marked for speedy deletion).
Since this feature is supported by the legacy version (Huggle 2.x), it would be great to support it on the new version too.
This issue was briefly discussed here: https://en.wikipedia.org/w/index.php?title=Wikipedia:Huggle/Feedback&oldid=625099410#Huggle_not_filtering_results
Version: trunk
Severity: enhancement