Classifieds - enhance so admin can choose durations

Hi there,

A feature suggestion for Classifieds 2.3.2.1

At the moment on the add classifieds page, the Duration (of an add) option gives the user the choice of 1,2,3 or 4 weeks.

Can this become an admin setting where we get to choose what the durations should be with an additional 'forever' option or at least a forever option when the Classifieds Payment Type option is set to Free Listings?

http://sportjo.com/classifieds/add-classified/

Thanks for considering,
Joanna