I've managed to find a small 4.10.1m patch, gonna apply it, see if it works, though I didn't find the version reference during the loading screen as you indicated... oh well...
As for the engine management, I've had it disabled, enabled it to see if there was any difference, but in the HOTAS axis assignment menu you can only assign it to the settings of one engine... as throttle increase and decrease by throttle control of HOTAS doesn't seem to be possible for all, I think... And my current HOTAS doesn't have key emulation so I can't work around it that way... maybe the new patch will help, but in any case the new HOTAS will...