freeplay modifiers

MiraAPI/Modifiers/BaseModifier.cs

@@ -30,6 +30,11 @@ public abstract class BaseModifier
     /// </summary>
     public virtual bool HideOnUi => false;
 
+    /// <summary>
+    /// Gets a value indicating whether the modifier is shown in the freeplay menu.
+    /// </summary>
+    public virtual bool ShowInFreeplay => false;
+
     /// <summary>
     /// Gets a value indicating whether the modifier can be added multiple times.
     /// </summary>