by jasper » 12 March 2014, 08:03
The trick is to create a second material template that goes with the second property package. You can rename the default (e.g. Material Type 1) and rename the scecond one (e.g. Material Type 2) to clearly tell them apart. Each type can be associated with its own thermo package, or you can associate the two types with the same package and select a different sub set of compounds. Now you can insert a stream and change its type, or you can change the dropdown on the tool bar (that shows the material type) prior to inserting a stream.