I was just trying out your UI and the pet toggle from the player window still doesn't work quite right. If you target yourself it cures your pet. It's pretty easy to test, since when you hover over the button, F1 shouldn't toggle between yourself and your pet anymore.
There's a small typo in this line I noticed.
<Button LocalTooltip="Cure Trauma" MouseOverTextColor="#FF0000" Name="CureEffect1" NormalTextColor="#FFFFFF" OnHoverIn="target_allow_pet_self_toggle 0" OnHoverOut="target_allow_pet_self_toggle 1" OnPress="useability Cure Trauma
target_previous1" Opacity="0.000" ScrollExtent="18,18" Size="18,18" Style="/Profit.invisible" Tooltip="Cure Trauma"></Button>
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