We do have customer request where we will have to administer loads of 3rd party tags. As we already track the page (with one property for all their sites) we want to avoid that people administering those 3rd party tags get access to this property, as they are not allowed to do changes to the property with Analytics in it.
As of now you just can set access rights on a property level, not per tool or tag.
A second property would solve the issue, but as you cannot determine the name of the DTM JS object ('_satellite') this does not work, as the second property overwrites the first one.
Thus my feature request is, to allow renaming the DTM object (as you can do with the Analytics 's' object) to be able to use two properties at the same time.