Okay so I went to powers under spells and tryed to make my spell but it kept adding it to spells instead of the powers tab.
And where would I insert that command?
Put the command right after Begin ScriptEffectStart. You could also put a message in saying that you can't use this spell while inside. That part would look like:
Begin ScriptEffectStartif player.IsInInterior == 1Message "You can't use this while indoors."returnendif
Note: This will also prevent the spell from being used in the Arena, since the game considers that to be an interior cell.
As for making the spell a Greater Power, open you spell in the CS. On the left side of the Spell window, you will see 3 data fields:
ID, Name and
Type. Click on
Type and select
Power from the dropdown menu. That will turn you spell into a Greater Power.
Note: NPCs cannot sell Greater Power spells, so you won't be able to buy this from a merchant unless you put it in a http://cs.elderscrolls.com/constwiki/index.php/Scripting_Tutorial:_Spell_Tome.