Different GUI.tooltip for different buttons

Hi folks, quick question. I understand this might be out of scope for the purposes of the OnGUI system, but I'm having a hard time understanding how a GUI.tooltip is assigned to a button.

The example given from the manual is as follows:

Code (csharp):

1.  
2. void OnGUI () {
3.         // This line feeds "This is the tooltip" into GUI.tooltip
4.         GUI.Button (new Rect (10,10,100,20), new GUIContent ("Click me", "This is the tooltip"));
5.        
6.         // This line reads and displays the contents of GUI.tooltip
7.         GUI.Label (new Rect (10,40,100,20), GUI.tooltip);
8.     }
9.  

Which doesn't make sense to me because how does the second statement know which button to assign the tooltip to? What if there are two buttons?

For example:

Code (csharp):

1.  
2.  
3. void OnGUI()
4.     {
5.         //Button #1
6.         GUI.Button(new Rect(10, 10, 100, 20), new GUIContent("Click me", "This is the tooltip"));
7.         GUI.Label(new Rect(10, 40, 100, 20), GUI.tooltip);
8.  
9.         //Button #2
10.         GUI.Button(new Rect(10, 120, 100, 20), new GUIContent("Click me #2", "This is the tooltip #2"));
11.         GUI.Label(new Rect(10, 160, 100, 20), GUI.tooltip);
12.     }
13.  
14.  

In the above case, if I hover over the first button, I see both tooltips underneath both buttons with the text from the first tooltip.
And if I hover over the second button, I see only the second tooltip under the second button only. That is very strange behaviour.

Any tips on this? I haven't been able to find anything regarding this, no examples in neither manual or script reference, and no google hits.

 

Don't use OnGUI, it's really old, use the new UI

 

The new UI doesn't have a built-in tooltip solution, though...

 

It's not for game UI, it's just for debug info while building out early prototypes. The tooltips aren't essential, I am just curious how this was intended to be used for more than one button.