▪To use picker hotkeys in animator mode:
Since MG-Picker Studio v1.6, picker hotkeys for animator mode are reduced to minimum set.
F7 and F8 are exceptions since F7 are global hotkey that always work, and F8 will works as long as you have picker window currently activated.
▪To checkout hotkeys for animator UI mode:
Click on the top right more feature button, select "Hotkey Outliner..";
The feature was actually made using a picker file :)