diff --git a/SlackNet/Blocks/DispatchActionConfig.cs b/SlackNet/Blocks/DispatchActionConfig.cs
new file mode 100644
index 0000000..3807ae3
--- /dev/null
+++ b/SlackNet/Blocks/DispatchActionConfig.cs
@@ -0,0 +1,22 @@
+using System.Collections.Generic;
+
+namespace SlackNet.Blocks
+{
+    /// <summary>
+    /// Determines when a<see cref="PlainTextInput"/> element will return a <see cref="BlockAction"/> interaction payload.
+    /// </summary>
+    public class DispatchActionConfig
+    {
+        /// <summary>
+        /// An array of <see cref="InteractionType"/> that you would like to receive a <see cref="BlockAction"/> payload for.
+        /// </summary>
+        [IgnoreIfEmpty]
+        public IList<InteractionType> TriggerActionsOn { get; set; } = new List<InteractionType>();
+    }
+
+    public enum InteractionType
+    {
+        OnEnterPressed,
+        OnCharacterEntered
+    }
+}
\ No newline at end of file
diff --git a/SlackNet/Blocks/InputBlock.cs b/SlackNet/Blocks/InputBlock.cs
index 82f429d..f4b9270 100644
--- a/SlackNet/Blocks/InputBlock.cs
+++ b/SlackNet/Blocks/InputBlock.cs
@@ -27,5 +27,10 @@ public InputBlock() : base("input") { }
         /// A boolean that indicates whether the input element may be empty when a user submits the modal.
         /// </summary>
         public bool Optional { get; set; }
+        
+        /// <summary>
+        /// A boolean that indicates whether or not the use of elements in this block should dispatch a <see cref="BlockAction"/> payload. Defaults to false.
+        /// </summary>
+        public bool DispatchAction { get; set; }
     }
 }
\ No newline at end of file
diff --git a/SlackNet/Blocks/PlainTextInput.cs b/SlackNet/Blocks/PlainTextInput.cs
index 492d1a8..c01c03a 100644
--- a/SlackNet/Blocks/PlainTextInput.cs
+++ b/SlackNet/Blocks/PlainTextInput.cs
@@ -37,6 +37,17 @@ public PlainTextInput() : base("plain_text_input") { }
         /// The maximum length of input that the user can provide. If the user provides more, they will receive an error.
         /// </summary>
         public int? MaxLength { get; set; }
+        
+        /// <summary>
+        /// A <see cref="DispatchActionConfig"/> that determines when during text input the element returns a <see cref="BlockAction"/> payload.
+        /// </summary>
+        public DispatchActionConfig DispatchActionConfig { get; set; }
+    }
+
+    [SlackType("plain_text_input")]
+    public class PlainTextInputAction : BlockAction
+    {
+        public string Value { get; set; }
     }
 
     [SlackType("plain_text_input")]