From the
Hero Lab explanation
What’s Included?
The D&D 5th Edition SRD game system in Hero Lab includes everything in the official SRD, such as races and their traits, character classes and class features, spells, equipment, magic items, and other character creation necessities. It also includes all the monsters and DM mechanics outlined in the SRD.
Importantly, the SRD differs from the rules presented in the Player’s Handbook, Dungeon’s Master’s Guide, and Monster Manual. It omits certain options that appear in the full rulebooks (e.g. certain spells, feats, etc.), so those options can’t be included in Hero Lab. Thankfully the free D&D 5E Community Pack provides all the missing pieces that you’re looking for. (Get it today!)