diff --git a/VDS.xcodeproj/project.pbxproj b/VDS.xcodeproj/project.pbxproj
index 3b468221..aece57ed 100644
--- a/VDS.xcodeproj/project.pbxproj
+++ b/VDS.xcodeproj/project.pbxproj
@@ -94,6 +94,7 @@
 		EAC9258F2911C9DE00091998 /* EntryField.swift in Sources */ = {isa = PBXBuildFile; fileRef = EAC9258B2911C9DE00091998 /* EntryField.swift */; };
 		EAD8D2C128BFDE8B006EB6A6 /* UIGestureRecognizer+Publisher.swift in Sources */ = {isa = PBXBuildFile; fileRef = EAD8D2C028BFDE8B006EB6A6 /* UIGestureRecognizer+Publisher.swift */; };
 		EAF1FE9929D4850E00101452 /* Clickable.swift in Sources */ = {isa = PBXBuildFile; fileRef = EAF1FE9829D4850E00101452 /* Clickable.swift */; };
+		EAF1FE9B29DB1A6000101452 /* Changeable.swift in Sources */ = {isa = PBXBuildFile; fileRef = EAF1FE9A29DB1A6000101452 /* Changeable.swift */; };
 		EAF7F0952899861000B287F5 /* Checkbox.swift in Sources */ = {isa = PBXBuildFile; fileRef = EAF7F0932899861000B287F5 /* Checkbox.swift */; };
 		EAF7F09A2899B17200B287F5 /* CATransaction.swift in Sources */ = {isa = PBXBuildFile; fileRef = EAF7F0992899B17200B287F5 /* CATransaction.swift */; };
 		EAF7F09E289AAEC000B287F5 /* Constants.swift in Sources */ = {isa = PBXBuildFile; fileRef = EAF7F09D289AAEC000B287F5 /* Constants.swift */; };
@@ -212,6 +213,7 @@
 		EAC9258B2911C9DE00091998 /* EntryField.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = EntryField.swift; sourceTree = "<group>"; };
 		EAD8D2C028BFDE8B006EB6A6 /* UIGestureRecognizer+Publisher.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "UIGestureRecognizer+Publisher.swift"; sourceTree = "<group>"; };
 		EAF1FE9829D4850E00101452 /* Clickable.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Clickable.swift; sourceTree = "<group>"; };
+		EAF1FE9A29DB1A6000101452 /* Changeable.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Changeable.swift; sourceTree = "<group>"; };
 		EAF7F0932899861000B287F5 /* Checkbox.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Checkbox.swift; sourceTree = "<group>"; };
 		EAF7F0992899B17200B287F5 /* CATransaction.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CATransaction.swift; sourceTree = "<group>"; };
 		EAF7F09D289AAEC000B287F5 /* Constants.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Constants.swift; sourceTree = "<group>"; };
@@ -418,6 +420,7 @@
 			isa = PBXGroup;
 			children = (
 				EA4DB2FC28D3D0CA00103EE3 /* AnyEquatable.swift */,
+				EAF1FE9A29DB1A6000101452 /* Changeable.swift */,
 				EAF1FE9829D4850E00101452 /* Clickable.swift */,
 				EAA5EEDF28F49DB3003B3210 /* Colorable.swift */,
 				EA3361A9288B25E40071C351 /* Disabling.swift */,
@@ -825,6 +828,7 @@
 				EA3361BD288B2C760071C351 /* TypeAlias.swift in Sources */,
 				EAB1D2CF28ABEF2B00DAE764 /* Typography.swift in Sources */,
 				EAF7F09A2899B17200B287F5 /* CATransaction.swift in Sources */,
+				EAF1FE9B29DB1A6000101452 /* Changeable.swift in Sources */,
 				EAF7F0A2289AFB3900B287F5 /* Errorable.swift in Sources */,
 				EA985C7D297DAED300F2FF2E /* Primitive.swift in Sources */,
 				EAF1FE9929D4850E00101452 /* Clickable.swift in Sources */,
diff --git a/VDS/Protocols/Changeable.swift b/VDS/Protocols/Changeable.swift
new file mode 100644
index 00000000..850c9cf2
--- /dev/null
+++ b/VDS/Protocols/Changeable.swift
@@ -0,0 +1,31 @@
+//
+//  Changeable.swift
+//  VDS
+//
+//  Created by Matt Bruce on 4/3/23.
+//
+
+import Foundation
+import UIKit
+import Combine
+
+public protocol Changeable: Handlerable where Self: UIControl {
+    var onChangeSubscriber: AnyCancellable? { get set }
+}
+
+extension Changeable {
+    public var onChange: ((Self) -> ())? {
+        get { return nil }
+        set {
+            if let newValue {
+                onChangeSubscriber = publisher(for: .valueChanged)
+                    .sink { c in
+                        newValue(c)
+                    }
+            } else {
+                onChangeSubscriber?.cancel()
+                onChangeSubscriber = nil
+            }
+        }
+    }
+}