Hi,
the HALion 5 Add-On license will cover HALion 5 32-bit (and 64-bit) and also Hypersonic. You won’t be able to use HAlion 5 and HALion 6 on the same system, since HALion 6 replaces the HAlion 5 plug-in. But the HALion 5 add-on license will be placed on your USB eLicenser and you can use it on a separate system. Hypersonic still be used next to your HALion 6 installation.
My apologies again for the lack of information prior to the release and the inconvenience of the add-on license. Unfortunately there is a technical barrier between the USB eLicenser and the soft eLicenser, that blocks HALion 6 from covering legacy products like HALion 5 or Hypersonic. If it would have been possible to allow the multi-license coverage, we would have done it.