Shared Cooldown?

I can't remember how to make a spell use a shared cool down. I want one of two options for a summon that uses the same cool down time.

Two custom spells based on the same spell will share a cooldown, or you can make one or more of the spells be based on channel, and then change the base order id of the spells based on channel to be the same.

I don't think that if you change the base order ID they will share the cool down anymore.

As far as i know this isnt possible without the use of a Spellbook.
If u want to the spellbook then just plunk them both in one, and then tick the "Shared cooldown" box.

I don't know if it works anymore, but I noticed a long time ago in the Object Editor this line when creating a spell:Apparently, giving a unit two spells based on the same order chain would make them share the same cooldown, but it also poses some problems when you want to implicitly order that unit to use an ability through triggers.

I cant find that line on any skills (i didnt check them all tho)
=S

I'm trying to use the spell book to cast the spells, but the problem is that it says "Tool tip missing!". I added the ability to the summoned unit and I can't seem to find the button that will change that

check all the fields on the spell book, it should be there under "tooltip" =)

EDIT: ok ill just run you through it

1) You should have created a new ability from it, and changed it from an item ability to unit. --> "Stats - Item Ability = False"
2) Added your 2 abilities --> "Data - Spell List"
3) Changed the number of abilities to 2 --> "Data - Maximum/Minimum Skills"
4) Changed the "Text - Tooltip" field