[Galaxy Tab 2 Q&A, Help & Troubleshooting] chopper the dog:
Now as a side bar, I run a stock tw rom on my tab2 7 (I love the ir blaster so aosp is out for me :p ) but I do some personal tweaking for my taste. You can change the order and add a custom button with this quick breeze over.

I added a power button and changed order of recent and home buttons plus edited all of the pressed images (also de-touch wizzed the crap out of the notif panel and got rid of the text under toggles and made line indicator line smaller and found all the powder blue text colors via xml edits). But on to adding power button and changing order.

decompile systemUI.apk and navigate to \res\layout-sw600dp\tw_status_bar.xml

<com.android.systemui.statusbar.policy.KeyButtonView android:id="@id/back" android:layout_width="wrap_content" android:layout_height="fill_parent" android:src="@drawable/tw_ic_sysbar_back" android:contentDescription="@string/accessibility_back" systemui:keyCode="4" systemui:glowBackground="@drawable/ic_sysbar_highlight" />
<com.android.systemui.statusbar.policy.KeyButtonView android:id="@id/home" android:layout_width="wrap_content" android:layout_height="fill_parent" android:src="@drawable/tw_ic_sysbar_home" android:contentDescription="@string/accessibility_home" systemui:keyCode="3" systemui:glowBackground="@drawable/ic_sysbar_highlight" />
<com.android.systemui.statusbar.policy.KeyButtonView android:id="@id/recent_apps" android:layout_width="wrap_content" android:layout_height="fill_parent" android:src="@drawable/tw_ic_sysbar_recent" android:contentDescription="@string/accessibility_recent" systemui:glowBackground="@drawable/ic_sysbar_highlight" />

Above is the way the lines appear in the stock xml and you can simply reorder lines so that they will appear in set order. But I added a new line and changed order seen in code below.

<com.android.systemui.statusbar.policy.KeyButtonView android:id="@id/back" android:layout_width="wrap_content" android:layout_height="fill_parent" android:src="@drawable/tw_ic_sysbar_back" android:contentDescription="@string/accessibility_back" systemui:keyCode="4" systemui:glowBackground="@drawable/ic_sysbar_highlight" />
<com.android.systemui.statusbar.policy.KeyButtonView android:id="@id/home" android:layout_width="wrap_content" android:layout_height="fill_parent" android:src="@drawable/tw_ic_sysbar_power" android:contentDescription="@string/accessibility_home" systemui:keyCode="26" systemui:glowBackground="@drawable/ic_sysbar_highlight" />
<com.android.systemui.statusbar.policy.KeyButtonView android:id="@id/recent_apps" android:layout_width="wrap_content" android:layout_height="fill_parent" android:src="@drawable/tw_ic_sysbar_recent" android:contentDescription="@string/accessibility_recent" systemui:glowBackground="@drawable/ic_sysbar_highlight" />
<com.android.systemui.statusbar.policy.KeyButtonView android:id="@id/home" android:layout_width="wrap_content" android:layout_height="fill_parent" android:src="@drawable/tw_ic_sysbar_home" android:contentDescription="@string/accessibility_home" systemui:keyCode="3" systemui:glowBackground="@drawable/ic_sysbar_highlight" />

I added a new home line and changed the sytem key value to power from this reference http://developer.android.com/reference/android/view/KeyEvent.html and you also need to add new @drawable references as well. Next is creating 2 brand new images using gimp in \res\drawable-sw600dp-mdpi\ tw_ic_sysbar_power_normal.png and tw_ic_sysbar_power_press.png. It is also needed to create the "new" drawable xml for the 2 new images. In res\drawable\ create a new xml file named tw_ic_sysbar_power.xml with included content from below.

<?xml version="1.0" encoding="utf-8"?>
<selector
xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true" android:drawable="@drawable/tw_ic_sysbar_power_press" />
<item android:drawable="@drawable/tw_ic_sysbar_power_normal" />
</selector>

<?xml version="1.0" encoding="utf-8"?>

<selector

xmlns:android="http://schemas.android.com/apk/res/android">

<item android:state_pressed="true" android:drawable="@drawable/tw_ic_sysbar_power_press" />

<item android:drawable="@drawable/tw_ic_sysbar_power_normal" />

</selector>

* edit * for some reason using the code paste it left off the last </selector> line as seen as a direct paste above.

compile apk and push to device.

Steps can be used to add any command. i.e. persistent play and skip media buttons.

good day.