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Usage and recommendations
Adding licenses for software features that a customer buys later than the initial purchase of a license can be easily accomplished by using multiple additive licenses, which don’t require that you change the original license. To prepare an additive license, you need to create a feature with the same name as the original license, set the proper version and count numbers, and add the line <SETTING KEYTYPE=”ADDITIVE”> to the XML license template file.
By default, all network licenses are exclusive, which means that they are taken into account first. During checkout, additive licenses are seen as a separate license pool of the same feature. You should ensure all needed features are checked out at one time, because a client cannot check out licenses from two different license pools.
It is important to understand that multiple additive licenses (even when combined with an exclusive license) do not behave exactly the same as one license with the combined license count.
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To minimize problems, you should checkout all needed licenses at one time.