Not really

Just take off, sleep and come back in the morning

 

or - increase the simulation rate to 4..

 

 No idea why you want something that does everything??

Or do what I amd probably several others do. I fly the flight as per normal depending on the length of the flight, and in between, once established at CL,  try fitting accessing my mail, replying to it and doing a host of other things online or offline like in a normal life , including reading posts here, or as Brent has pointed out here, speed up the sim, and then take control just before T/D.

if flightsim users want to fly from the United States to China, it would be difficult to play for that long, so auto fly add-on would be nice for long trips like this.

 

 

Use the autopilot....