[SOLUTION] set UI RectTransform Anchor Presets from code c#

Thanks for it - it was pretty much what I was searching for. I rewrote it a little bit to use DoTween and make a smooth transition instead of instant jump to the new position since that was what I needed.

 using DG.Tweening;
 using UnityEngine;
 
 public enum AnchorPresets
 {
     TopLeft,
     TopCenter,
     TopRight,
 
     MiddleLeft,
     MiddleCenter,
     MiddleRight,
 
     BottomLeft,
     BottonCenter,
     BottomRight,
     BottomStretch,
 
     VertStretchLeft,
     VertStretchRight,
     VertStretchCenter,
 
     HorStretchTop,
     HorStretchMiddle,
     HorStretchBottom,
 
     StretchAll
 }
 
 public enum PivotPresets
 {
     TopLeft,
     TopCenter,
     TopRight,
 
     MiddleLeft,
     MiddleCenter,
     MiddleRight,
 
     BottomLeft,
     BottomCenter,
     BottomRight,
 }
 
 public static class RectTransformExtensions
 {
     public static Tween SetAnchor(this RectTransform source, AnchorPresets allign, float offsetX = 0, float offsetY = 0, float duration = 1, Ease ease = Ease.OutCubic)
     {
         Vector2 anchorMin = Vector2.zero;
         Vector2 anchorMax = Vector2.zero;
         switch (allign)
         {
             case (AnchorPresets.TopLeft):
                 {
                     anchorMin = new Vector2(0, 1);
                     anchorMax = new Vector2(0, 1);
                     break;
                 }
             case (AnchorPresets.TopCenter):
                 {
                     anchorMin = new Vector2(0.5f, 1);
                     anchorMax = new Vector2(0.5f, 1);
                     break;
                 }
             case (AnchorPresets.TopRight):
                 {
                     anchorMin = new Vector2(1, 1);
                     anchorMax = new Vector2(1, 1);
                     break;
                 }
 
             case (AnchorPresets.MiddleLeft):
                 {
                     anchorMin = new Vector2(0, 0.5f);
                     anchorMax = new Vector2(0, 0.5f);
                     break;
                 }
             case (AnchorPresets.MiddleCenter):
                 {
                     anchorMin = new Vector2(0.5f, 0.5f);
                     anchorMax = new Vector2(0.5f, 0.5f);
                     break;
                 }
             case (AnchorPresets.MiddleRight):
                 {
                     anchorMin = new Vector2(1, 0.5f);
                     anchorMax = new Vector2(1, 0.5f);
                     break;
                 }
 
             case (AnchorPresets.BottomLeft):
             {
                 anchorMin = new Vector2(0, 0);
                     anchorMax = new Vector2(0, 0);
                     break;
                 }
             case (AnchorPresets.BottonCenter):
                 {
                     anchorMin = new Vector2(0.5f, 0);
                     anchorMax = new Vector2(0.5f, 0);
                     break;
                 }
             case (AnchorPresets.BottomRight):
                 {
                     anchorMin = new Vector2(1, 0);
                     anchorMax = new Vector2(1, 0);
                     break;
                 }
 
             case (AnchorPresets.HorStretchTop):
                 {
                     anchorMin = new Vector2(0, 1);
                     anchorMax = new Vector2(1, 1);
                     break;
                 }
             case (AnchorPresets.HorStretchMiddle):
                 {
                     anchorMin = new Vector2(0, 0.5f);
                     anchorMax = new Vector2(1, 0.5f);
                     break;
                 }
             case (AnchorPresets.HorStretchBottom):
                 {
                     anchorMin = new Vector2(0, 0);
                     anchorMax = new Vector2(1, 0);
                     break;
                 }
 
             case (AnchorPresets.VertStretchLeft):
                 {
                     anchorMin = new Vector2(0, 0);
                     anchorMax = new Vector2(0, 1);
                     break;
                 }
             case (AnchorPresets.VertStretchCenter):
                 {
                     anchorMin = new Vector2(0.5f, 0);
                     anchorMax = new Vector2(0.5f, 1);
                     break;
                 }
             case (AnchorPresets.VertStretchRight):
                 {
                     anchorMin = new Vector2(1, 0);
                     anchorMax = new Vector2(1, 1);
                     break;
                 }
 
             case (AnchorPresets.StretchAll):
                 {
                     anchorMin = new Vector2(0, 0);
                     anchorMax = new Vector2(1, 1);
                     break;
                 }
         }
 
 
         source.DOAnchorMin(anchorMin, duration).SetEase(ease);
         source.DOAnchorMax(anchorMax, duration).SetEase(ease);
 
         return source.DOAnchorPos(new Vector2(offsetX, offsetY), duration).SetEase(ease);
     }
 
     public static Tween SetPivot(this RectTransform source, PivotPresets preset, float duration = 1, Ease ease = Ease.OutCubic)
     {
         Vector2 pivotVector2 = Vector2.zero;
         switch (preset)
         {
             case (PivotPresets.TopLeft):
                 {
                     pivotVector2 = new Vector2(0, 1);
                     break;
                 }
             case (PivotPresets.TopCenter):
                 {
                     pivotVector2 = new Vector2(0.5f, 1);
                     break;
                 }
             case (PivotPresets.TopRight):
                 {
                     pivotVector2 = new Vector2(1, 1);
                     break;
                 }
 
             case (PivotPresets.MiddleLeft):
                 {
                     pivotVector2 = new Vector2(0, 0.5f);
                     break;
                 }
             case (PivotPresets.MiddleCenter):
                 {
                     pivotVector2 = new Vector2(0.5f, 0.5f);
                     break;
                 }
             case (PivotPresets.MiddleRight):
                 {
                     pivotVector2 = new Vector2(1, 0.5f);
                     break;
                 }
 
             case (PivotPresets.BottomLeft):
                 {
                     pivotVector2 = new Vector2(0, 0);
                     break;
                 }
             case (PivotPresets.BottomCenter):
                 {
                     pivotVector2 = new Vector2(0.5f, 0);
                     break;
                 }
             case (PivotPresets.BottomRight):
             {
                     pivotVector2 = new Vector2(1, 0);
                     break;
                 }
         }
          return source.DOPivot(pivotVector2, duration).SetEase(ease);
     }
 }