How can i make invulnerable of the structure

[whiteghoul]

How can i make invulnerable of the structure\units

I'm new in starcraft 2 editor so i don't know where i can find the properties of structure....
And also a Unit to make invulnerable......

Hope you can help me.........

 

[The Undaddy]

To make it invulnerable by default go to Data Editor(F7) -> Units, select your structure and go to Unit - Flags and check invulnerable.
With triggers it looks like Unit - Make invulnerable.
For the properties just on the structure and press enter.

 

[whiteghoul]

If i use data editor and the Data source is "All Data"....
should be change the original structure/unit?

Or just a map i created should be works there of my edit structure and unit................