generate glyph.

How to create Glyph in Fontlab Studio ??

Hi everybody !!
Im just join to 4rum !! :D
Because i'm come from VietNam, i speak english not well.!!
Hope you understand ! :(

I have a problems when work with Fontlab Studio 5.

I have Aphrodite Font, but it's english font !!
I can't write VietNamese language !!
So i'm changing it to VietNam but dont affect them.
Just add character to this font !!

But when i do it, i want to join 2 character to 1 group like picture !!
The sad thing, i dont know do it !!
Who can show me how to do it !!
Thanks so much !!

Last time, I'm come from VN so i speak E not well.
If i post this topic in the wrong location, please Admin move it to right location !!
Thanks all !!