As mentioned above, Shift+Z Stats works perfectly even with SU5.
You can display your simrate only, and/or others indicators.
As in FSX you can toggle between differents displays.
But as (near) all is configurable you can choose what info is on each display, or put the ones you want in an unique one.
You can also configure top left or top right position, color and size of each line, etc…
Last but not least, the ultimate function:
in external view it toggles HUD On/Off by pressing " < " or " > " keys !
https://flightsim.to/file/16358/shift-z-stats