diff --git a/MVMCoreUI/Atomic/Atoms/Selectors/CheckboxModel.swift b/MVMCoreUI/Atomic/Atoms/Selectors/CheckboxModel.swift
index 87c4568d..31f19bae 100644
--- a/MVMCoreUI/Atomic/Atoms/Selectors/CheckboxModel.swift
+++ b/MVMCoreUI/Atomic/Atoms/Selectors/CheckboxModel.swift
@@ -7,7 +7,7 @@
 //
 
 
-@objcMembers public class CheckboxModel: NSObject, MoleculeModelProtocol, SelectableMoleculeModelProtocol, FormFieldProtocol {
+@objcMembers public class CheckboxModel: MoleculeModelProtocol, SelectableMoleculeModelProtocol, FormFieldProtocol {
     //--------------------------------------------------
     // MARK: - Properties
     //--------------------------------------------------
@@ -15,7 +15,7 @@
     public static var identifier: String = "checkbox"
     public var backgroundColor: Color?
     public var accessibilityIdentifier: String?
-    public dynamic var selected: Bool = false
+    public var selected: Bool = false
     public var enabled: Bool = true
     public var animated: Bool = true
     public var inverted: Bool = false
@@ -80,6 +80,14 @@
         baseValue = isChecked
     }
     
+    //--------------------------------------------------
+    // MARK: - Behavior
+    //--------------------------------------------------
+    
+    public func getRequiredBehaviors() -> [PageBehaviorModelProtocol] {
+        [SelectAllBoxesBehaviorModel()]
+    }
+    
     //--------------------------------------------------
     // MARK: - Codec
     //--------------------------------------------------
diff --git a/MVMCoreUI/Atomic/Atoms/Selectors/ToggleModel.swift b/MVMCoreUI/Atomic/Atoms/Selectors/ToggleModel.swift
index 0fb42632..056035b4 100644
--- a/MVMCoreUI/Atomic/Atoms/Selectors/ToggleModel.swift
+++ b/MVMCoreUI/Atomic/Atoms/Selectors/ToggleModel.swift
@@ -7,7 +7,7 @@
 //
 
 
-public class ToggleModel: NSObject, MoleculeModelProtocol, FormFieldProtocol, EnableableModelProtocol, SelectableMoleculeModelProtocol {
+public class ToggleModel: MoleculeModelProtocol, FormFieldProtocol, EnableableModelProtocol, SelectableMoleculeModelProtocol {
     //--------------------------------------------------
     // MARK: - Properties
     //--------------------------------------------------
@@ -15,7 +15,7 @@ public class ToggleModel: NSObject, MoleculeModelProtocol, FormFieldProtocol, En
     public static var identifier: String = "toggle"
     public var accessibilityIdentifier: String?
     public var backgroundColor: Color?
-    public dynamic var selected: Bool = false
+    public var selected: Bool = false
     public var animated: Bool = true
     public var enabled: Bool = true
     public var action: ActionModelProtocol?
diff --git a/MVMCoreUI/Behaviors/SelectAllBoxesBehavior.swift b/MVMCoreUI/Behaviors/SelectAllBoxesBehavior.swift
index 1f7326fd..3837eaa9 100644
--- a/MVMCoreUI/Behaviors/SelectAllBoxesBehavior.swift
+++ b/MVMCoreUI/Behaviors/SelectAllBoxesBehavior.swift
@@ -9,8 +9,8 @@
 /// Protocol to apply to any model of a UI Control with a binary on/off nature.
 ///
 /// Example classes: Checkbox or Toggle.
-@objc public protocol SelectableMoleculeModelProtocol: AnyObject {
-    @objc dynamic var selected: Bool { get set }
+@objc public protocol SelectableMoleculeModelProtocol {
+    var selected: Bool { get set }
 }
 
 public class SelectAllBoxesBehaviorModel: PageBehaviorModelProtocol {
@@ -34,9 +34,6 @@ public class SelectAllBoxesBehavior: PageCustomActionHandlerBehavior, PageMolecu
     /// Reference to the general PageBehaviorModel.
     var model: PageBehaviorModelProtocol
     
-    /// Dictionary of KVOs to observing the selected property of each `SelectableMoleculeModel`.
-    private var observers = [String: NSKeyValueObservation?]()
-    
     /// A store representing the values of the `SelectableMoleculeModel`.
     private var valuesMirror = [String: Bool]()
     
@@ -57,45 +54,17 @@ public class SelectAllBoxesBehavior: PageCustomActionHandlerBehavior, PageMolecu
     
     public func onPageNew(rootMolecules: [MoleculeModelProtocol], _ delegateObject: MVMCoreUIDelegateObject) {
         
-        let selectableModels: [(NSObject & SelectableMoleculeModelProtocol)] = rootMolecules.allMoleculesOfType()
+        let selectableModels: [SelectableMoleculeModelProtocol] = rootMolecules.allMoleculesOfType()
         
         guard !selectableModels.isEmpty else { return }
         
         for model in selectableModels {
             if let key = (model as? FormFieldProtocol)?.fieldKey {
                 valuesMirror[key] = model.selected
-                setObserver(model, fieldKey: key)
             }
         }
     }
     
-    func setObserver<T>(_ model: T, fieldKey: String) where T: (NSObject & SelectableMoleculeModelProtocol) {
-        
-        observers[fieldKey] = model.observe(\.selected, options: [.new]) { [weak self] model, change in
-            guard let self = self,
-                  let isChecked = change.newValue
-            else { return }
-            
-            self.valuesMirror[fieldKey] = isChecked
-            
-            // If all are models are in the opposite state of the behavior, then realign.
-            if self.selectAllIsMisaligned() {
-                self.realignPageBehaviorAs(willSelectAll: false)
-                
-            } else if self.deselectAllIsMisaligned() {
-                self.realignPageBehaviorAs(willSelectAll: true)
-            }
-        }
-    }
-    
-    //--------------------------------------------------
-    // MARK: - Deinit
-    //--------------------------------------------------
-    
-    deinit {
-        observers.values.forEach { $0?.invalidate() }
-    }
-    
     //--------------------------------------------------
     // MARK: - Custom Action
     //--------------------------------------------------
@@ -110,23 +79,45 @@ public class SelectAllBoxesBehavior: PageCustomActionHandlerBehavior, PageMolecu
     public func handleAction(type actionType: String?, information: [AnyHashable: Any]?, additionalData: [AnyHashable: Any]?) -> Bool {
         
         // Verify we have the correct action type and necessary values.
-        guard actionType == "selectAllBoxes",
-              let selectableModels: [SelectableMoleculeModelProtocol] = delegate?.moleculeDelegate?.getRootMolecules().allMoleculesOfType(),
-              !selectableModels.isEmpty
-        else { return false }
-        
-        // Hold value dues to asynch behavior of page refreshing.
-        let newSelectedState = willSelectAllState
-        
-        // Iterate through selectable molecules.
-        for selectableModel in selectableModels {
-            if toSelect(model: selectableModel) || toDeselect(model: selectableModel) {
-                selectableModel.selected = newSelectedState
+        if actionType == "selectAllBoxes" {
+            guard let selectableModels: [SelectableMoleculeModelProtocol] = delegate?.moleculeDelegate?.getRootMolecules().allMoleculesOfType(),
+                  !selectableModels.isEmpty
+            else { return false }
+            
+            // Hold value dues to asynch behavior of page refreshing.
+            let newSelectedState = willSelectAllState
+            
+            // Iterate through selectable molecules.
+            for selectableModel in selectableModels {
+                if toSelect(model: selectableModel) || toDeselect(model: selectableModel) {
+                    selectableModel.selected = newSelectedState
+                }
             }
+            
+            willSelectAllState.toggle()
+            updatePageNavigationUI()
+            return true
+            
+        } else if actionType == "boxSelected" {
+            guard let checkboxModel = (additionalData?["sourceModel"] as? CheckboxModel),
+                  let fieldKey = checkboxModel.fieldKey
+            else { return false }
+            
+            self.valuesMirror[fieldKey] = checkboxModel.selected
+            
+            // If all are models are in the opposite state of the behavior, then realign.
+            if self.selectAllIsMisaligned() {
+                self.realignPageBehaviorAs(willSelectAll: false)
+                
+            } else if self.deselectAllIsMisaligned() {
+                self.realignPageBehaviorAs(willSelectAll: true)
+            }
+            
+            return true
+            
+        } else {
+            return false
         }
-        
-        updatePageNavigationUI()
-        return true
     }
     
     //--------------------------------------------------