Eric,
Correct. Subscribing to a collection means you only watch content in that collection, not in its subcollections. Subscription of Collection 0 (i.e. absolute root) is impossible as it is not tied to any existing entity (it's best to start DMX by making some collections and start your document management from there because it is so much easier from an administrative point of view). Disabling it for collections would mean making it invisible when viewing a collection. That can be done quite simply by editing the ViewCollection.ascx and changing the following:

ButtonVisibility-CommandSubscribeShown="view"
ButtonVisibility-CommandUnsubscribeShown="view"

to read as follows:

ButtonVisibility-CommandSubscribeShown="false"
ButtonVisibility-CommandUnsubscribeShown="false"

This will remove those buttons from the collection view page.

Peter

I tried your suggestion just to see what it might offer up but couldn't see a change in the disply - the subscription checkboxes still appeared everywhere on both collections and individual entries.

Hi Eric,
This puzzles me as I've just verified this on my own installation and it did remove the buttons. What version of DNN/DMX are you using?
Peter

Now I notice you're talking about the checkboxes (and not the buttons). These are not 'subscription checkboxes' but 'selection checkboxes'. They serve to select items in a collection that you want to perform some operation on (delete, subscribe, lock, etc). Do you want to get rid of those?
Peter

Yes, but selectively - ideally they would only display next to file items and not collections.