How to increase/decrease unit hit points.

[Glitspeed]

I am creating a zombie survival style map, and I have no idea how to increase/decrease unit hit points.
I enter the object editor, and all I can find relating to hit points is: Stats – Hit Points Maximum (Base): Stats: Hit Points Regeneration Rate: and Hit Points Regeneration Type:.
I have manipulated all of them trying to find something that works, but so far nothing has.
Please help.

 

[UreDe4D]

there is a book which gives you permanent +50 HP, just modify that one and give it to the hero, you can also put in negative values (hold shift while doubleclicking the field)

 

[FrIkY]

then you must have done something wrong, with ''Stats – Hit Points Maximum (Base)'' is how you ''increase/decrease'' units hit points

Peasant has 220 hit points, ok looks like this ''Stats – Hit Points Maximum (Base) 220'', if you want to change it, double click, set how you want and it's ''Stats – Hit Points Maximum (Base) 5000''

Now peasant has 5000 hit points, how simple is that?

 

[Elite Slayer]

If you're looking to decrease a unit's initial in-game hit points then double-click the specific unit in the World Editor (Make sure the Unit Palette is acive) and click the "General" category at the top toolbar of the Unit's menu.

Now, simply change the percentage value in "Hit Points %:" to what you want it to be.
Keep in mind, though, that this works in percentage, not raw value.
E.g: If I change a Peasant's HP percentage to 50%, it will be half his maximum hit points, therefore it will be 110 hit points when I start the game.