Shift+P does not collapse card panel

[bogovicj]

For me Shift+P does not collapse the card panel despite the Keymap list claiming it does.
Shift+Esc does work as advertised.

[tpietzsch]

Hmm, it probably only works when the ViewerPanel has focus.

Adding user-configurable shortcuts to the card panel is tricky (...so I didn't do it. Shift+Esc is hard-coded...):
Many of the default keys would interfere with shortcuts implemented by JTable, JSlider, Text fields for source and group names, etc... Certainly everything involving arrow keys is problematic. Probably something could be done to make user-configured keys that don't interfere work, but seems non-trivial and I didn't invest time into it so far.