Digital Dice Rolling: Where do I click for the 'Nick' Weapon Mastery?

When you have a character that has Weapon Mastery for something like Dagger, I don't see an option to digital dice roll for the 'Nick' portion of the Weapon Mastery. 

When I have a Dagger equipped, I can do the usual digital dice rolls by clicking the 'To Hit' or 'Damage' portions of dagger... but there's no such option for 'Nick' as far as I can see.

It's not under Actions, nor is it under Bonus Actions.

Thanks.

It's annoying that this needs to be customised, given that this is part of the core rules and not some special attack that's the product of homebrew.

I hope DnDBeyond make it a priority to fix this. It should come as a standard option on character sheets when you have the weapon mastery and correct weapon.