More target type?

[paleto123]

is there a way to add more target type? like air, ground, self, not self, etc, etc.

 

[Pyrogasm]

Only the ones that exist in the Object Editor are the ones that can be used there. A few of the types can be repurposed if you don't need them in your map or are okay with the side effects of doing so. These include: Ancient, Suicidal, Worker. Perhaps more, search around a bit and you will see.

 

[Uncle]

You can always use triggers to create your own classifications/types. Then you can trigger your abilities to be canceled if they target the wrong type. Here's an example map.