Time and again I see people ask how to “lock layers” in Producer. No such feature exists (or probably ever will) and even modifiers do not lock layers. While pan following modifiers come close, all they actually do is align the subordinate layer’s center to the master layer’s center. The layer with the modifier uses the information that modifier reads from another layer to adjust its own behavior. Pan following modifiers have the potential to save time and effort.
If you’ve ever tried to use a pan follow modifier with a layer that was sized at other than 100%, you might check this tutorial out to find out what to do so that it actually works correctly.