I would love a way to be able to use my custom python scripts and the vast amount of Python libraries on line items in a module, rather than use the Anaplan formulas out of the box.
 
It would save time on export/import data to the Anaplan model. 
 
I'm assuming the formulas that are used now are some form of Java or C++? Maybe the scripts could be a wrapper so it converts Python to Java, or R to Java, or VBA to Java, whatever the backend of Anaplan's calc engine is.