So how many objects total can you put on say a conventional scanlist? Is there a maximum?
Chief
I'm not aware of/haven't encountered any limit.
Scanlists are simply logical groups of channels, etc. When you scan, the radio just gathers up all of the things you want to (try to) scan and then scans them so ultimately, it's really just one huge scanlist in the end.
Just remember, the more you scan, the slower the scan cycle gets.
Best to break things up into smaller groups (scanlists) and enable/disable as you go.
One other minor point - there isn't really such a thing as a "conventional" scanlist. You can mix and match any type of objects in any given scanlist.