Kroneborge
Sounds neat, although I wonder if it's needed with the multi mic postions in now available.
Every library is different. Some are mixed mono, some mixed stereo & panned, some have er's in the samples, some don't.
The plugin runs true stereo & generates only the er's so the idea is to have all the same reflections of the room when using different libs, then to tails.
Originally you could use the input offset to for some to compensate for wide /panned stereo but it was confusing, you'd wind up with phase cancellation & other issues.
The addition of these new presets were added to do that part automatically.
IIRC the dev is a musician foremost, this his his first plugin release. He plans to keep developing it as he learns & users discovers problems so it's a bit of an ongoing thing.
It works quite well, no crashing here, x64 & low cpu which you need using so many instances for orch.. Even using it by ear you can get a similar 'stage footprint' using all your different libraries.