Would somebody please tell me where the "mid-word hamza" is mapped? I know that's not the real name for it and my Arabic teacher would disapprove, but I assume you know what I mean?

For example: to type "your friends":

أصدقاءك

ُThat hamza should have a connecting bar underneath it. Where is the correct hamza mapped? I'm using the Arabic keyboard config as opposed to Arabic-QWERTY.

Also, if anyone has advice about typing in Arabic let me know. I'm pretty comfortable with it by now, but I'd be interested in learning more.

شكرا
پول