For example, if I acquire the level-2 skill on the light/fast attack 'tree' and activate it (by placing it in a 'slot'), does the level-1 skill too get activated by default or do I have to equip it in another 'slot' for it to be active?
So basically, does activating a skill in a skill tree activate all other skills above it by default, or do they have to be placed in separate slots?