[Eilserves]

I presume you mean the 3.5?
It was a flag:

usrCandid1 / component.BaseSpell & sSchool.Necromancy & (sLevel.1 | sLevel.2) & (sClass.Cleric | sClass.Wizard)

And a script:

Post-Attrbutes / 15000 / 1

doneif (field[usrChosen1].ischosen = 0)
doneif (#levelcount[DreadNecr] < 4)

root.field[cSpellExpr].text &= " | " & "thingid." & field[usrChosen1].chosen.idstring

Unfortunately, this did not work, the drop down has "Nothing to select" which is what got me looking into the Spell Blending for inspiration.

Of note, I did also try changing the flag to this:

component.BaseSpell & sSchool.Necromancy & (sLevel.1 | sLevel.2) & (sClass.cHelpClr | sClass.cHelpWiz)

But that still did not populate the dropdowns.