Text style management
[ Ctrl ] + [ B ] : bold text
[ Ctrl ] + [ I ] : italic text

Link management
[ Ctrl ] + [ K ] : insert link

Action management
[ Ctrl ] + [ C ] : copy text
[ Ctrl ] + [ X ] : cut text
[ Ctrl ] + [ V ] : paste text

Undo redo management : --- Z --- action --- Y ---
[ Ctrl ] + [ Z ] : undo action
[ Ctrl ] + [ Y ] : redo action