Unity Script Reference:

static function BeginVertical(params options: GUILayoutOption[]): void;

static void BeginVertical(params GUILayoutOption[] options);

static def BeginVertical(*options as GUILayoutOption[]) as void

static function BeginVertical(style: GUIStyle, params options: GUILayoutOption[]): void;

static void BeginVertical(GUIStyle style, params GUILayoutOption[] options);

static def BeginVertical(style as GUIStyle, *options as GUILayoutOption[]) as void

static function BeginVertical(text: string, style: GUIStyle, params options: GUILayoutOption[]): void;

static void BeginVertical(string text, GUIStyle style, params GUILayoutOption[] options);

static def BeginVertical(text as string, style as GUIStyle, *options as GUILayoutOption[]) as void

static function BeginVertical(image: Texture, style: GUIStyle, params options: GUILayoutOption[]): void;

static void BeginVertical(Texture image, GUIStyle style, params GUILayoutOption[] options);

static def BeginVertical(image as Texture, style as GUIStyle, *options as GUILayoutOption[]) as void

static function BeginVertical(content: GUIContent, style: GUIStyle, params options: GUILayoutOption[]): void;

static void BeginVertical(GUIContent content, GUIStyle style, params GUILayoutOption[] options);

static def BeginVertical(content as GUIContent, style as GUIStyle, *options as GUILayoutOption[]) as void

Parameters

text	Text to display on group.
image	Texture to display on group.
content	Text, image, and tooltip for this group.
style	The style to use for background image and padding values. If left out, the background is transparent.
options	An optional list of layout options that specify extra layouting properties. Any values passed in here will override settings defined by the `style`. See Also: GUILayout.Width, GUILayout.Height, GUILayout.MinWidth, GUILayout.MaxWidth, GUILayout.MinHeight, GUILayout.MaxHeight, GUILayout.ExpandWidth, GUILayout.ExpandHeight.

Description

Begin a vertical control group.

All controls rendered inside this element will be placed vertically below each other. The group must be closed with a call to EndVertical.

Vertical Layout.

	function OnGUI () {	
		// Starts a vertical group
		GUILayout.BeginVertical ("box");
		GUILayout.Button ("I'm the top button");
		GUILayout.Button ("I'm the bottom button");
		
		GUILayout.EndVertical();
	}

using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    void OnGUI() {
        GUILayout.BeginVertical("box");
        GUILayout.Button("I'm the top button");
        GUILayout.Button("I'm the bottom button");
        GUILayout.EndVertical();
    }
}

import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	def OnGUI() as void:
		GUILayout.BeginVertical('box')
		GUILayout.Button('I\'m the top button')
		GUILayout.Button('I\'m the bottom button')
		GUILayout.EndVertical()