Here's how I add spells to NPC sheets. Let's say I want to give my goblins access to Vampiric Touch. (Sorry, players.) 1. Open the character sheet. Hover the mouse over the upper right portion of the sheet to make a gear icon appear. Click that icon; this will launch NPC Options. 2. In NPC Options, check the "Spellcasting NPC" checkbox. Optionally, choose a spellcasting ability and caster level. (I have chosen to say that this goblin is a fifth-level spellcaster who uses Dexterity as their casting stat, because why not.) Also, make sure that "Auto Roll Damage & Crit" is selected if that is the behavior you want. 3. Find "Vampiric Touch" in the Compendium and drag it onto the character sheet. The phrase "ACCEPTING DROP FROM COMPENDIUM" should appear, and then you should have Vampiric Touch in the new spellcasting section of your goblin character sheet. 4. Click the "Vampiric Touch" text and you'll get an attack roll with damage. (Good night, Level 1 PC.). Does some version of this workflow get you what you're looking for?