diff --git a/hecl/blender/hecl/sact/SACTAction.py b/hecl/blender/hecl/sact/SACTAction.py
index 42007f88e..e7c2d17f8 100644
--- a/hecl/blender/hecl/sact/SACTAction.py
+++ b/hecl/blender/hecl/sact/SACTAction.py
@@ -54,7 +54,9 @@ def draw(layout, context):
                 #layout.prop(linked_action, 'hecl_index', text="Index")
                 #layout.prop(linked_action, 'hecl_anim_props', text="Props")
                 layout.prop(linked_action, 'hecl_fps', text="Frame Rate")
-                layout.prop(context.scene, 'hecl_auto_remap', text="60-fps Remap")
+                row = layout.row()
+                row.prop(context.scene, 'hecl_auto_remap', text="60-fps Remap")
+                row.prop(linked_action, 'hecl_additive', text="Additive")
 
 
 
diff --git a/hecl/blender/hecl/sact/__init__.py b/hecl/blender/hecl/sact/__init__.py
index f55ffc8fd..43e484d19 100644
--- a/hecl/blender/hecl/sact/__init__.py
+++ b/hecl/blender/hecl/sact/__init__.py
@@ -252,6 +252,7 @@ def register():
     bpy.utils.register_class(SACTData)
     bpy.types.Scene.hecl_sact_data = bpy.props.PointerProperty(type=SACTData)
     bpy.types.Action.hecl_fps = bpy.props.IntProperty(name='HECL Action FPS', default=30)
+    bpy.types.Action.hecl_additive = bpy.props.BoolProperty(name='HECL Additive Action', default=False)
     bpy.types.Scene.hecl_auto_remap = bpy.props.BoolProperty(name="Auto Remap",
         description="Enables automatic 60-fps time-remapping for playback-validation purposes",
         default=True, update=time_remap_update)