ROTD The Pandemonium

[elwizprezley]

Has anyone ever played ROTD pandemonium? well anwyay i need to know 1 thing ill do it basic way and msot understandable
-I select my hero
-I click on Hero Learn abilitie tab (where u learn ure abilities each level)
-Then i see laods of abilities but you dont learn them they are learned inside that tab and you can use them from taht tab how do u do that which trigger or w/e is it?
Can someone please help? Oh and the game is where u have 2 squads fighting zombies and ETs doing missions etc etc