Summary
    Focusses the 
		Animancer.Editor.TransitionPreviewWindow or creates one if none exists.
    Or closes the existing window if it was already previewing the `transitionProperty`.
    - Assembly
 - Animancer
.dll  - Namespace
 - Animancer
.Editor  - Containing Type
 - Transition
Preview Window  
Syntax
public static void OpenOrClose(SerializedProperty transitionProperty)
	Parameters
| Name | Type | Description | 
|---|---|---|
| transitionProperty | SerializedProperty | 
Return Value
| Type | Description | 
|---|---|
| void |