On the TT side, the answers are in the TT wiring diagram. There are issues with transfer switches and multiple possible sources of power. They are all different and require different configurations to hook up. I don't know about your particular TT, but some RV's get highly complicated. Transfer switches are designed to manage all that.
On the power source side: 230 volt AC is two legs with a common neutral. The two legs are "out of phase" (one leg is high while the other is low). The neutral caries only the difference in load between the two legs.
L1 may carry 20 amps while L2 is carrying 15 amps. The difference (5 amps) is carried by the neutral. You cannot overload the neutral. Some outlets are powered by L1 and others by L2. Any 230 volt appliances would have to be separately wire between L1 and L2.
Many big generators and inverters provide only 115 volts. Also, when connected to a 30 amp pedestal you only have one leg 115 volt to work with. The transfer switch connects both TT L1 and L2 to the generator or inverter so all outlets are powered.
When you have a two leg 230 volt generator, you don't need the transfer switch to reconfigure the TT, so you would need a different transfer switch or a transfer switch which could be reconfigured to match the two leg 230 volt generator. The switch would still need to accommodate the one leg inverter.
With the proper transfer switch and TT wiring, you can do anything. It may cost quit a bit.
Dutchman Kodiak Cub KD176RD 2018
Nissan Pathfinder 2015