thanks for the reply
1)was not aware you also had to enable in geforce experience - where do I find this option (which menu)- can find the game in there but not the option?
2)was aware of the steam overlay requirement in steam - had already enabled it in both the overall settings and properties - but shift+tab brings up nothing in game?
3)also in the link it mentions conflict of key bindings - but only using the default and MSFS? (so I dont think a conflict?)
Update: found the geforce overlay - its alt+z but its enabled (not sure it has any connection to the steam one).
Also strangely on my other games (with steam overlay enabled) shift+tab brings up the overlay with no problems - its just MSFS - also tried to change the binding (in case its a conflict) but steam wont let me edit the shift + tab default bindings?