i see in ini it should bypass door 2 but it is not
Nothing in the .INI says it should bypass the exit 2. There's a code = 2, which means the exit 2 will open with Shift+E then 2, which is seems to be shared with the cargo doors.
So, assuming this airplane has working cargo doors that open with Shift+E then 2, and a static exit 2, you should put
code = 0
in the [exit2] section.
q2 i noticed in the forum that their are updates are these seperate update than the live update in fsx
They are addition and users contributions, so they are not mandatory to use GSX properly, but surely can be useful, if you have the related airplane or scenery.