Flap gauge, left and right values

Hi everyone,
Not sure if this has been answered before, but i did a few searches but could find any info.
I purchased a dual pointer flap gauge from simkits, but the set-up only seems to have one flap function, and not two (left and right.)
Im a bit confused because i cant see the point in having two needles, with only one funtion. Can someone shed some light on this, or give me a link?

Thankyou,
Regards
TOM

Hi, page 17 of Pete Dawsons offset list says 0BE0 left flap position, 0BE4 right flap position.

you should go get this file at http://www.schiratti.com/files/dowson/FSUIPC_SDK.zip

inside there you will see the file "FSUICP4 offset status.pdf"
every offset FS uses

Andy

Thanks Ian,
I was hoping that the left and right funtions would already be incorperated into the simkits setup software.
I havent had much to do with SDK, and it looks like i will need to learn a whole lot more, just to get the two needles working :( oh well.
Thankyou
Tom