OMNI V1.5.2.6 or greater must be installed. Then, you will find it under Herds > Settings. You must have your herd set up first, and then will see it on the right hand side.
When an Autosort Connect has Omni-Select integration enabled, you cannot trigger a factory reset/default. Disable the Omni connection option to do a factory reset.
The AutoFlex Connect II comes with an upgraded touchscreen and new enclosure colour. The software is the same for both models. This means there is nothing new to learn when you upgrade to the new AutoFlex Connect II.
No, backwards compatibility was added in a later AutoSort Connect version, therefore you would need to upgrade to ASC, and the appropriate version of OMNI software, before backwards compatibility will work.
No. You can connect a maximum of one. It can be either an EXPANSION-6 or an EXPANSION-14. Module outputs can be connected to expansion boxes to expand their load capacity though. For example: An FD-1-14 or FD-2-7 FanDrive connected to a VDC-4 output, ...