Setting a tile on a tilelayer programmatically

Hello, I was wondering if someone could tell me what the "official" way is to set a tile programmatically on a tile layer. I can not find any example in the documentation. Below you will find my current code (which works), but I can not imagine setting a single tile image in a tile layer would require this much code. What am I missing?

My code to set a tile:

SetTile(tileLayer, worldPos, 4);

Following is the code behind this method:

private void SetTile(T2DTileLayer tileLayer, Vector2 worldPos, int tileIndex)
{
        T2DTileObject tileObject = tileLayer.PickTile(worldPos);

        if (tileObject != null)
        {
            Vector2 gridPos = tileObject.GridPosition;

            T2DTileObject newTileObject = (T2DTileObject)tileObject.Clone();
            newTileObject.GridPosition = gridPos;
            newTileObject.TileType = GetTileType(tileLayer, tileIndex, tileObject.TileType);

            tileLayer.SetTileByGridCoords((int)gridPos.X, (int)gridPos.Y, newTileObject);
        }            
    }

private T2DTileType GetTileType((T2DTileLayer tileLayer, int newTileIndex, T2DTileType tileTypeTemplate)
{
        T2DTileType foundTileType = tileLayer.TileTypes.Find((Predicate<T2DTileType>)delegate(T2DTileType tileType) { return tileType.MaterialRegionIndex == newTileIndex; });
        if (foundTileType == null)
        {
            // Easy way - clone from an existing object
            foundTileType = tileTypeTemplate.Clone();
            foundTileType.MaterialRegionIndex = newTileIndex;
            foundTileType.Index = tileLayer.TileTypes.MaxIndex() + 1;
            foundTileType.Name = string.Format("{0}{1}", foundTileType.Name, foundTileType.Index); // Make sure name is unique, documentation does not specify if this is required
            tileLayer.TileTypes.Add(foundTileType);
        }
        return foundTileType;
    }

And following some extension methods:

static class LocalExtensions
{
    public static T2DTileType Clone(this T2DTileType original)
    {
        T2DTileType obj = new T2DTileType();
        obj._material = original._material;
        obj.CollisionPolyBasis = original.CollisionPolyBasis;
        obj.CollisionsEnabled = original.CollisionsEnabled;
        obj.Index = original.Index;
        obj.Material = original.Material;
        obj.MaterialRegionIndex = original.MaterialRegionIndex;
        obj.ObjectType = original.ObjectType;
        return obj;
    }

    public static int MaxIndex(this List<T2DTileType> list)
    {
        int max = 0;
        foreach (T2DTileType tileType in list)
        {
            max = (tileType.Index > max ? tileType.Index : max);
        }
        return max;
    }
}