The 'Preset Picker' comes in 2 flavors:
a) Internal bank view
b) Database presets view
The 'Internal bank view' is very simple and just shows the presets of the currently loaded bank.
You can select a preset there and the wrapped VST 2 plugin will switch to that position in the
internal bank and load the selected sound.
The 'Database presets view' in contrast is quite complex and gives you - on the one hand - quick access to all
imported presets and - on the other hand - the possibilty to do tagging and filtering as well as other
'maintenance' related stuff.
The 'Preset Picker' consists of 3 panes:
Is is possible to create virtual banks.
If you want to know more about this feature, see here: Virtual banks