Inventory Backpack trigger help, add it...

Inventory Backpack trigger help, add it...

I am making a map and i want soemthing like a backpack in it.

I have looked around for maps with it, and found one, but how do i add it while i keep all of my triggers and custom data?

Is there a way?

Or, is there an easy way to make me have more space. I dont want a nother unit beisdes me, and I want ti to be multiplayer. If anyone can help me, i would be truly greatfull!

And the bag system i liked is found here, its simple, yet effective!

http://www.wc3sear.ch/?p=Spells&ID=739