The next release of EQ2 Henchman will have this list for picking spells for all the click to cast models.
When you select your class it will display only that class, then you can select a level and it will then only list spells for that class that that level can use. Much much better then picking spells from a list like you have to do now.
I've added some screen shots from the dev app I am using to test it with. Image 1 is of all spells list and image 2 is of all spells a level 80 Troub can use.
