Godot - Creating and Adding Buttons to a ButtonGroup

This GDScript code demonstrates how to create a new ButtonGroup and add buttons to it.

To create a ButtonGroup node from a script, use ButtonGroup.new().
To display it, you need to add it as a child using add_child().

# Create a ButtonGroup node
var button_group = ButtonGroup.new()
add_child(button_group)

To add a Button node to a ButtonGroup, use the following code.

# Create a Button node
var button = Button.new()
add_child(button)
button.set_text("This is a Button")

# Add the Button node to the ButtonGroup
button_group.add_child(button)