Displays modules from one module position in another.
Great when:
* You need to show/hide some module(s) responsively or
* You're using several templates with non-matching module position names and you don't want to have two copies of each module or
* Your template has separate module positions for mobile layout (e.g. Shape5 templates) and you don't want to have two copies of each module or
* You want to organise modules into logical groups