allocSet = systemcomposer.allocation.createAllocationSet(name, sourceModel, targetModel)
creates a new allocation set with the given name in which the source and target models are
provided.
Create an allocation set and open in Allocation Editor
% Create the allocation set with name MyNewAllocation.
systemcomposer.allocation.createAllocationSet('MyNewAllocation',...'Source_Model_Allocation','Target_Model_Allocation');
% Open the allocation editor
systemcomposer.allocation.editor()