When having multiple elements to be geometrical joined with a target element with Join Geometry, in Revit 2015 we have the option Multiple Join which allows us to select multiple elements using a ‘crossing’ window. The same happens when we want to switch the join order for multiple elements with the Switch Join Order. In that case we get the option Multiple Switch and this makes it possible to also select our second pick with a ‘crossing’ window.
But a more hidden and nice feature is a dialog that pops up when having selected elements where the join order is different. For instance, look at the example above, where columns are prior to the floor, but the floor is prior to the walls. When switching the join order, the next dialog gives us several options to define the priority of the join order.
The next video illustrates how to use it properly.