Like Dropdown, but allows you to quickly set some const expression value

use SaintsField;

[OptionsDropdown(EUnique.Disable, "Hor/Left", "Hor/Right", "Vert/Top", "Vert/Bottom", "Center")]
public string[] treeOpt;

use SaintsField;

public enum Direction
{
    None,
    Left,
    Right,
    Up,
    Down,
    Center,
}

[PairsDropdown("negative/1", -1, "negative/2", 2, "negative/3", -3, "zero", 0, "positive/1", 1, "positive/2", 2, "positive/3", 3)]
public int treeIntOpt;

// useful if you don't want the entire enum
[PairsDropdown(EUnique.Disable, "Hor/<-", Direction.Left, "Hor/->", Direction.Right, "Vert/↑", Direction.Up, "Vert/↓", Direction.Down)]
public Direction[] treeDireOpt;