diff --git a/dev-assets/doodads/azulian/azulian.js b/dev-assets/doodads/azulian/azulian.js
index 5178cc7..40291ca 100644
--- a/dev-assets/doodads/azulian/azulian.js
+++ b/dev-assets/doodads/azulian/azulian.js
@@ -1,6 +1,9 @@
 function main() {
 	log.Info("Azulian '%s' initialized!", Self.Doodad.Title);
 
+
+		Self.Canvas.SetBackground(RGBA(0, 153, 255, 100));
+
 	var playerSpeed = 12;
 	var gravity = 4;
 	var Vx = Vy = 0;
diff --git a/dev-assets/doodads/doors/locked-door.js b/dev-assets/doodads/doors/locked-door.js
index cabbce2..fee9610 100644
--- a/dev-assets/doodads/doors/locked-door.js
+++ b/dev-assets/doodads/doors/locked-door.js
@@ -2,6 +2,8 @@ function main() {
 	Self.AddAnimation("open", 0, [1]);
 	var unlocked = false;
 
+	Self.Canvas.SetBackground(RGBA(0, 255, 255, 100));
+
 	// Map our door names to key names.
 	var KeyMap = {
 		"Blue Door": "Blue Key",
@@ -32,6 +34,5 @@ function main() {
 	});
 	Events.OnLeave(function(e) {
 		console.log("%s has stopped touching %s", e, Self.Doodad.Title)
-		Self.Canvas.SetBackground(RGBA(0, 0, 1, 0));
 	})
 }
diff --git a/dev-assets/doodads/trapdoors/down.js b/dev-assets/doodads/trapdoors/down.js
index e861082..1f383cb 100644
--- a/dev-assets/doodads/trapdoors/down.js
+++ b/dev-assets/doodads/trapdoors/down.js
@@ -3,7 +3,7 @@ function main() {
 
 	var timer = 0;
 
-	Self.SetHitbox(0, 0, 72, 9);
+	Self.SetHitbox(0, 0, 72, 6);
 
 	var animationSpeed = 100;
 	var opened = false;
diff --git a/lib/events/events.go b/lib/events/events.go
index 9c650fb..c3957ec 100644
--- a/lib/events/events.go
+++ b/lib/events/events.go
@@ -8,8 +8,9 @@ import (
 // State keeps track of event states.
 type State struct {
 	// Mouse buttons.
-	Button1 *BoolTick
-	Button2 *BoolTick
+	Button1 *BoolTick // left
+	Button2 *BoolTick // right
+	Button3 *BoolTick // middle
 
 	EscapeKey   *BoolTick
 	EnterKey    *BoolTick
@@ -33,6 +34,7 @@ func New() *State {
 	return &State{
 		Button1:     &BoolTick{},
 		Button2:     &BoolTick{},
+		Button3:     &BoolTick{},
 		EscapeKey:   &BoolTick{},
 		EnterKey:    &BoolTick{},
 		ShiftActive: &BoolTick{},
diff --git a/lib/render/sdl/events.go b/lib/render/sdl/events.go
index 3ec1a92..6c958da 100644
--- a/lib/render/sdl/events.go
+++ b/lib/render/sdl/events.go
@@ -83,7 +83,7 @@ func (r *Renderer) Poll() (*events.State, error) {
 				return false
 			}
 
-			if checkDown(1, s.Button1) || checkDown(3, s.Button2) {
+			if checkDown(1, s.Button1) || checkDown(3, s.Button2) || checkDown(2, s.Button3) {
 				// Return the event immediately.
 				return s, nil
 			}
diff --git a/pkg/doodads/actor.go b/pkg/doodads/actor.go
index 0b1f173..037b1f7 100644
--- a/pkg/doodads/actor.go
+++ b/pkg/doodads/actor.go
@@ -17,8 +17,8 @@ type Actor interface {
 	SetGrounded(bool)
 
 	// Actor's elected hitbox set by their script.
-	SetHitbox(x, y, w, h int)
-	Hitbox() render.Rect
+	// SetHitbox(x, y, w, h int)
+	// Hitbox() render.Rect
 
 	// Movement commands.
 	MoveBy(render.Point) // Add {X,Y} to current Position.
@@ -39,3 +39,12 @@ func GetBoundingRect(d Actor) render.Rect {
 		H: S.H,
 	}
 }
+
+// GetBoundingRectWithHitbox is like GetBoundingRect but adjusts it for the
+// relative hitbox of the actor.
+// func GetBoundingRectWithHitbox(d Actor, hitbox render.Rect) render.Rect {
+// 	rect := GetBoundingRect(d)
+// 	rect.W = hitbox.W
+// 	rect.H = hitbox.H
+// 	return rect
+// }
diff --git a/pkg/doodads/drawing.go b/pkg/doodads/drawing.go
index dbe404c..9fcf401 100644
--- a/pkg/doodads/drawing.go
+++ b/pkg/doodads/drawing.go
@@ -76,20 +76,20 @@ func (d *Drawing) SetGrounded(v bool) {
 	d.grounded = v
 }
 
-// SetHitbox sets the actor's elected hitbox.
-func (d *Drawing) SetHitbox(x, y, w, h int) {
-	d.hitbox = render.Rect{
-		X: int32(x),
-		Y: int32(y),
-		W: int32(w),
-		H: int32(h),
-	}
-}
-
-// Hitbox returns the actor's elected hitbox.
-func (d *Drawing) Hitbox() render.Rect {
-	return d.hitbox
-}
+// // SetHitbox sets the actor's elected hitbox.
+// func (d *Drawing) SetHitbox(x, y, w, h int) {
+// 	d.hitbox = render.Rect{
+// 		X: int32(x),
+// 		Y: int32(y),
+// 		W: int32(w),
+// 		H: int32(h),
+// 	}
+// }
+//
+// // Hitbox returns the actor's elected hitbox.
+// func (d *Drawing) Hitbox() render.Rect {
+// 	return d.hitbox
+// }
 
 // MoveBy a relative value.
 func (d *Drawing) MoveBy(by render.Point) {
diff --git a/pkg/editor_ui.go b/pkg/editor_ui.go
index 1664e6c..e77937e 100644
--- a/pkg/editor_ui.go
+++ b/pkg/editor_ui.go
@@ -548,9 +548,12 @@ func (u *EditorUI) SetupStatusBar(d *Doodle) *ui.Frame {
 		}
 	}
 
-	// TODO: right-aligned labels clip out of bounds
+	var shareware string
+	if balance.FreeVersion {
+		shareware = " (shareware)"
+	}
 	extraLabel := ui.NewLabel(ui.Label{
-		Text: "blah",
+		Text: "Doodle v" + Version + shareware,
 		Font: balance.StatusFont,
 	})
 	extraLabel.Configure(ui.Config{
diff --git a/pkg/editor_ui_doodad.go b/pkg/editor_ui_doodad.go
index 4bae7d0..fa09133 100644
--- a/pkg/editor_ui_doodad.go
+++ b/pkg/editor_ui_doodad.go
@@ -49,6 +49,68 @@ func (u *EditorUI) setupDoodadFrame(e render.Engine, window *ui.Window) (*ui.Fra
 		perRow = balance.UIDoodadsPerRow
 	)
 
+	frame.SetBackground(render.RGBA(0, 153, 255, 153))
+
+	// Toolbar on top of the Doodad panel.
+	toolbar := ui.NewFrame("Doodad Palette Toolbar")
+	toolbar.Configure(ui.Config{
+		Background:  render.Grey,
+		BorderSize:  2,
+		BorderStyle: ui.BorderRaised,
+		Height:      20,
+	})
+	{
+		// Link button.
+		linkButton := ui.NewButton("Link", ui.NewLabel(ui.Label{
+			Text: "Link Doodads",
+		}))
+		linkButton.Handle(ui.Click, func(p render.Point) {
+			u.d.Flash("Hello world")
+		})
+		u.Supervisor.Add(linkButton)
+
+		toolbar.Pack(linkButton, ui.Pack{
+			Anchor: ui.N,
+			FillX:  true,
+		})
+	}
+	frame.Pack(toolbar, ui.Pack{
+		Anchor: ui.N,
+		Fill:   true,
+	})
+
+	// Pager buttons on top of the doodad list.
+	pager := ui.NewFrame("Doodad Pager")
+	{
+		leftBtn := ui.NewButton("Prev Page", ui.NewLabel(ui.Label{
+			Text: "<",
+		}))
+		u.Supervisor.Add(leftBtn)
+		pager.Pack(leftBtn, ui.Pack{
+			Anchor: ui.W,
+		})
+
+		pageLabel := ui.NewLabel(ui.Label{
+			Text: "    Page 1 of 20",
+		})
+		pager.Pack(pageLabel, ui.Pack{
+			Anchor: ui.W,
+			Expand: true,
+		})
+
+		rightBtn := ui.NewButton("Next Page", ui.NewLabel(ui.Label{
+			Text: ">",
+		}))
+		u.Supervisor.Add(rightBtn)
+		pager.Pack(rightBtn, ui.Pack{
+			Anchor: ui.W,
+		})
+	}
+	frame.Pack(pager, ui.Pack{
+		Anchor: ui.N,
+		Fill:   true,
+	})
+
 	doodadsAvailable, err := doodads.ListDoodads()
 	if err != nil {
 		return frame, fmt.Errorf(
diff --git a/pkg/uix/canvas.go b/pkg/uix/canvas.go
index b68fb0c..557c483 100644
--- a/pkg/uix/canvas.go
+++ b/pkg/uix/canvas.go
@@ -65,6 +65,10 @@ type Canvas struct {
 	OnDeleteActors func([]*level.Actor)
 	OnDragStart    func(filename string)
 
+	// When the Canvas wants to link two actors together. Arguments are the IDs
+	// of the two actors.
+	OnLinkActors func(a, b string)
+
 	// Tracking pixels while editing. TODO: get rid of pixelHistory?
 	pixelHistory []*level.Pixel
 	lastPixel    *level.Pixel
diff --git a/pkg/uix/canvas_wallpaper.go b/pkg/uix/canvas_wallpaper.go
index a1f623c..8c5f25d 100644
--- a/pkg/uix/canvas_wallpaper.go
+++ b/pkg/uix/canvas_wallpaper.go
@@ -88,19 +88,19 @@ func (w *Canvas) PresentWallpaper(e render.Engine, p render.Point) error {
 	// from the Origin (0,0) we find out by how far (subtract full tile sizes)
 	// and use the remainder as an offset for drawing the tiles.
 	var dx, dy int32
-	if origin.X > 0 {
-		for origin.X > 0 && origin.X > size.W {
+	if origin.X > p.X {
+		for origin.X > p.X && origin.X > size.W {
 			origin.X -= size.W
 		}
 		dx = origin.X
-		origin.X = 0
+		origin.X = p.X
 	}
-	if origin.Y > 0 {
-		for origin.Y > 0 && origin.Y > size.H {
+	if origin.Y > p.Y {
+		for origin.Y > p.Y && origin.Y > size.H {
 			origin.Y -= size.H
 		}
 		dy = origin.Y
-		origin.Y = 0
+		origin.Y = p.Y
 	}
 
 	// And capping the scroll delta in the other direction.
diff --git a/pkg/uix/draw_modes.go b/pkg/uix/draw_modes.go
index 2168b1f..ebf631f 100644
--- a/pkg/uix/draw_modes.go
+++ b/pkg/uix/draw_modes.go
@@ -7,11 +7,13 @@ type Tool int
 const (
 	PencilTool Tool = iota // draw pixels where the mouse clicks
 	ActorTool              // drag and move actors
+	LinkTool
 )
 
 var toolNames = []string{
 	"Pencil",
 	"Doodad", // readable name for ActorTool
+	"Link",
 }
 
 func (t Tool) String() string {