There's something I'm not sure on with the Alternate Advancements. For example: Lets' say I'm advancing my Conjurer. There's 3 tabs at the top: Conjurer, Focus Effects, & Half Elf. If I go to the Conjuror tab and make my selections, does that mean I can't use the other 2 also?. (focus & half elf) OR, are you SUPPOSED to use all 3?