When I moved from rotary to fixed wing I wasn't type rated at all on anything except a dodgy old beech duchess and was expected, in a very old analouge sim, to taxi, call for check lists, calculate descent points and 'run' the sector as you would 'roughly' be expected on the line. There will 'possibly' be scenarios where weather/failures will result in you having to make decisions about where to go and why.
Whilst you will not be expected to know the company SOP's per-se they will expect some CRM and interaction and a sense that you are 'on top' of what is going on. You have a licence and a rating so, if I were your assessor, I would expect you to be able to at least fly the thing.
Think a little about what you are actually there to demonstrate.