kbTrainer for Chrome is fun and easy-to-use: all buttons have comments or F1, F2- like help short explanations.But here are some other hotkeys:· In lesson or book mode try to use Arrow Keys with/without Cmd · In books mode also Cmd + PgUp and PgDown, Shift and End or Home buttons.· F2 -- force layout to change, useful in Lunux if something does not work. · Cmd+Z - back from Shift+End or Shift+Home.· Cmd+D: delets book use
Requirements: · Google Chrome