It's actually written at the bottom of skill train screen.
hold down 'u' and click to unlearn, hold down 'a' and click to auto-learn(use up all available skill points to train at once).
It's actually written at the bottom of skill train screen.
hold down 'u' and click to unlearn, hold down 'a' and click to auto-learn(use up all available skill points to train at once).