Hello.
I were wondering if it would be possible to make it detect values (like in an RPG detect your health / mana ) and act on those value's like if your health is less than 50 or 100 (or maby even in % which would be awesome) it should rest or use some button / item.

Yes, When I was playing Asheron's Call (Which is what the Program was MADE for) I had scripts that would Make Health and Mana Pots, being that in creating the pots you'd use your own Health and Mana, you could use Food items or Rest to replished Mana and use Healing Kits, Food, Magic or Rest to heal. Course now this was making Items while you were in your Apartment/House/Villa so you aren't using a script for Unattend Combat Macro which is Frowned upon in about Every game out there. But scripting to make items to sell seems to be ok in some games. AC1 being one of them.