Custom spell automation

[Chivalrous1]

I have come up with a custom spell, but cannot for the life of me figure out how to automate it, or if it can even be automated. Without going into the gory details here is the TL/DR

Prismatic Bolt
5th level evocation spell
Sorcerer, Wizard
Works like Magic missle (auto hit)
Bolt Deals 1d8 of each element of damage (excluding bludgeoning, slashing, piercing), so a total of 9d8 damage / half damage on Dex save
That portion I can figure out how to do. It is the upcast that I can't figure out.

Upcasting:
Using 6th level slot, damage increases to 1d10
Using 7th level slot, damage increases to 1d12
Using 8th level slot, damage increases to 1d20
Using 9th level slot, 2 bolts

[Zacchaeus]

You can't automate the upcast. That's just text; normally you'd just grab the dice from the spell damage line in the actions tab and then right click to add more dice. But since you are changing the dice you'll need to create new spell lines for each damage dice.

[Chivalrous1]

You can't automate the upcast. That's just text; normally you'd just grab the dice from the spell damage line in the actions tab and then right click to add more dice. But since you are changing the dice you'll need to create new spell lines for each damage dice.

OK thanks Zacchaeus, that must be why I couldn't figure out how to automate the upcast. As you suggested, I just added new damage lines for each upcast.