Can ability be used without creating a file

Yes. Especially want to avoid separate .uasset assets for each ability.

Second is I want edit each ability property in editor window like the image blow.

The reason I use seperate abilities to do this is I want use more biuldin funtionality like predition flow (ability cost cooldown checkcanactive and so on)

Ultimately maybe I will make a common ability for the “state machine’s state” and a “statemachine ability”

and for the cdo, For me personally, the ability created by unreal editor is cdo to me.

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