Default S3-T999 Samsung Keyboard issue - Can you help?

I love the stock Samsung keyboard. On 4.1.2 version, the comma was a separate button to the left of "spacebar" button. This was perfect. Now, I upgraded to 4.3 version and the ROM (S3Rx) has Note 2 keyboard (with numbers on top). Anyway, the comma is buried under the Sym. The less used "." is a free standing button.

Is there anyway to mod this apk so that instead of period it will be the comma? Look at the pic attached to see what I mean.

I've tried pulling the old SamsungIME.apk from the nandroid backup as well as trying other similar downloads from xda. None seem to work.

Please let me know if you know how to do this.
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Galaxy S
In future, we integrate more into the phone or phone integrates more into us?