BoxGroup

Can be used to group serialized fields.

Warning

Doesn’t work on serialized fields that are nested inside serialized structs of classes.

public class NaughtyComponent : MonoBehaviour
{
    [BoxGroup("Integers")]
    public int firstInt;
    [BoxGroup("Integers")]
    public int secondInt;

    [BoxGroup("Floats")]
    public float firstFloat;
    [BoxGroup("Floats")]
    public float secondFloat;
}