A few of the synths can do equal-tempered microtonal tunings, like the Arp 2600 and Moog Modular, where you can adjust the keyboard CVs to different intervals, and some of the others have similar hacks. But seriously, a global tuning parameter in each synth where you could import a tuning file would be marvelous. It would be nice to be able to use the same tuning, like Wendy Carlos's Alpha, across all the plugins. In something like Analog Lab, it would be amazing to keep certain global tuning presets, but be able to switch between different synths or organs or pianos. I would stop using every other software synth and exclusively use Arturia with that kind of consistency. This should be a feature, even if the amount of artists utilizing it were small at first. I guarantee more and more artists would begin experimenting with it if it had that kind of easy access.