There is not a global task that can be used across multiple NSQs. One limitation to importing users thru AD in NPrinting is that you are unable to import the filters (rules) to be associated with each of the recipients.
Typically, there will be single source for recipients that can be used and scheduled as part of a recipient import task. Outside of AD, this can be used with a variety of file types, database connections or even stored in a QVW.
This will bring in the distribution information, personal details (e.g. title, company) and filters to be assigned to that recipient or group.
From there, you will have the entire recipient base to choose from when setting up report tasks.
Here is more information that may be helpful: