The Flex Eight is indeed a nice replacement for the our previous 2x8/4x10 platforms! Much better audio quality, lots of connectivity (USB audio, BT, Toslink, SPDIF) and same sample rate (96kHz) allow you to jump to an advanced platform without breaking the bank!
Unfortunately we don't have an easy translator tool to go from 2x8/4x10 to Flex Eight project file. However, these platforms are all working on the same sample rate (96kHz) so you can easily import the custom biquad and settings from your 2x8 into the Flex Eight. By having both software side by side, you can easily carry the settings over. It's only a matter of few copy and paste and you'll be all good to go!
Keep us updated on your next Flex Eight project! We look forward to seeing it in the forum space.