There should be a default resident task - from the root ADNM console folder tree, it’s under Tasks, Client-side. Edit the resident task to your liking.
Clients check in for policies. I think the setting that controls that is in the properties of the Computer Catalog. Under Policies: Avast! there’s a setting for overwriting settings every x minutes - mine’s set to 30 minutes. In practice that’s about right as I generally see the .ini file of clients updated fairly quickly.