PPCGeeks - Display batt during call? Don't display last call? Display BT status?

I'm hoping that these are simple registry hacks.

1) Can one enable battery status display during calls (on dialpad app).

2) Is it possible to not display the "last call" on the dial pad. I read a thread where the dial pad skin is replaced. I simply would like to keep the existing and remove the "last call". Is it possible?

3) Is it possible to see the bluetooth status without going to the dialpad? I would like to know when the headset is paired and when it is not.

4) Bonus question: Does anyone know of a complied list for Notification queues? I see a list within Memmaid, but would like to know what each does. Some can be deduced, but others are unclear.

Thanks for any help.