Insert a flexible space element.
Flexible spaces use up any leftover space in a layout.
Note: This will override the GUILayout.ExpandWidth and GUILayout.ExpandHeight
Flexible Space in a GUILayout Area.
var sliderValue : float = 1.0;
function OnGUI() {
// Wrap everything in the designated GUI Area
GUILayout.BeginArea (Rect (0,0,200,60));
// Begin the singular Horizontal Group
GUILayout.BeginHorizontal();
// Place a Button normally
GUILayout.RepeatButton ("A button with\ntwo lines");
// Place a space between the button and the vertical area
// so it fits the whole area
GUILayout.FlexibleSpace();
// Arrange two more Controls vertically beside the Button
GUILayout.BeginVertical();
GUILayout.Box("Value:" + Mathf.Round(sliderValue));
sliderValue = GUILayout.HorizontalSlider (sliderValue, 0.0, 10);
// End the Groups and Area
GUILayout.EndVertical();
GUILayout.EndHorizontal();
GUILayout.EndArea();
}