Align variables horizontally in unity inspector - unity3d

Question

I'm writing a very simple class for storing data (at least, for now) for use in a Unity project to do with a learning AI. I want to be able to easily customize multiple agents in the inspector and the number of checkboxes stacked vertically makes this part of my project dominate the inspector. If I could simply have one section make use of the ample empty space on the right side of the inspector, that would be considerably less ugly.
I've been reading a lot about custom property drawers and inspector windows, but it seems like a lot of work, involving rewriting how the entire class is displayed, for one change.
For reference, here is the class itself.
[System.Serializable]
public class NNInfo
{
public string networkName = "Agent";
[Header("Movement Properties")]
public float movementSpeed = 10f;
public float rotationSpeed = 1f;
[Header("Learning Properties")]
public float learningRate = 0.1f;
public float momentum = 0f;
public Rewards rewardFunc;
public int[] hiddenLayers;
[Header("Other Properties")]
public int maxHealth = 1000;
[Header("Optional Inputs")]
public bool m_PointToNearestBall = false; // input which is 1 while the agent is facing a ball and -1 when facing away
public bool m_DistanceToNearestBall = false; // input which is 1 while the agent is at the ball and -1 when at max possible distance away
public bool m_PointToEndzone = false; // similar to m_PointToNearestBall but for the endzone
public bool m_Position = false; // two inputs which inform the player of its normalized x and y coordinates on the field
public bool m_WhetherHoldingBall = false; // tells the player whether its holding a ball
public bool m_CanSeeHealth = false; // Whether the player can know its own health
[Header("Optional Outputs")]
public bool m_ForwardLeft = false; // turn left and move forward simultaneously
public bool m_ForwardRight = false; // turn right and move forward simultaneously
public bool m_Reverse = false; // move backwards
public bool m_Flip = false; // instantly switch to opposite direction
public bool m_TurnToBall = false; // instantly turn to face nearest ball
public bool m_TurnToLeft = false; // instantly turn to face left side of field
public bool m_Attack = false; // attack a player (or idle if no contact)
}

Answer 1

Custom Property Drawer is keyword which should be interesting for you.
Writing your own code for managing those - lets you describe how you want to show your properties inside Inspector View in Unity editor.
To start, go to official documentation site, which contains code you can base on.
Code snippets (Javacrpt, c# version can be found under the link):
Object's code:
enum IngredientUnit { Spoon, Cup, Bowl, Piece }
// Custom serializable class
class Ingredient extends System.Object {
var name : String;
var amount : int = 1;
var unit : IngredientUnit;
}
var potionResult : Ingredient;
var potionIngredients : Ingredient[];
function Update () {
// Update logic here...
}
Editor code:
#CustomPropertyDrawer(Ingredient)
class IngredientDrawer extends PropertyDrawer {
// Draw the property inside the given rect
function OnGUI (position : Rect, property : SerializedProperty, label : GUIContent) {
// Using BeginProperty / EndProperty on the parent property means that
// prefab override logic works on the entire property.
EditorGUI.BeginProperty (position, label, property);
// Draw label
position = EditorGUI.PrefixLabel (position, GUIUtility.GetControlID (FocusType.Passive), label);
// Don't make child fields be indented
var indent = EditorGUI.indentLevel;
EditorGUI.indentLevel = 0;
// Calculate rects
var amountRect = new Rect (position.x, position.y, 30, position.height);
var unitRect = new Rect (position.x+35, position.y, 50, position.height);
var nameRect = new Rect (position.x+90, position.y, position.width-90, position.height);
// Draw fields - passs GUIContent.none to each so they are drawn without labels
EditorGUI.PropertyField (amountRect, property.FindPropertyRelative ("amount"), GUIContent.none);
EditorGUI.PropertyField (unitRect, property.FindPropertyRelative ("unit"), GUIContent.none);
EditorGUI.PropertyField (nameRect, property.FindPropertyRelative ("name"), GUIContent.none);
// Set indent back to what it was
EditorGUI.indentLevel = indent;
EditorGUI.EndProperty ();
}
}