Should Agonizing blast show up as a global damage modifier?

I have levelled up a warlock and taken agonizing blast. Things like rage have a checkbox which allows you to add the extra damage to the roll. Should agonizing blast have this? Or has something gone wrong?

The D&D5e by Roll20 character sheet automates a lot, but it doesn't always take care of things like feats and special abilities. You can manually add the modifier to the eldritch blast cantrip. In the spell's control dialog (click the gear icon under the spell description) check the box next to "ADD ABILITY MOD DAMAGE OR HEALING". Since the warlock's spellcasting ability is charisma, this will add their charisma modifier to the eldritch blast's damage roll.

Thank you, that's perfect