diff --git a/CHANGELOG.md b/CHANGELOG.md
index 70878a8..444ba6f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+1.4.4
+
+- changed: default start to 100
+- fixed: can now add shortcut to world copy/paste
+- fixed: snap curve to ground
+
 1.4.3
 
 - fixed: reset constrained bone position and add a location key at (0,0,0)
diff --git a/OP_world_copy_paste.py b/OP_world_copy_paste.py
index 9743d26..a1dad7e 100644
--- a/OP_world_copy_paste.py
+++ b/OP_world_copy_paste.py
@@ -3,7 +3,7 @@ from . import fn
 
 
 class AW_OT_world_space_copy(bpy.types.Operator):
-    bl_idname = "autowalk.world_space_copy"
+    bl_idname = "pose.world_space_copy"
     bl_label = "World Copy"
     bl_description = "Copy world space transforms. Store active bone matrix"
     bl_options = {"REGISTER", "UNDO"}
@@ -18,13 +18,16 @@ class AW_OT_world_space_copy(bpy.types.Operator):
         return {"FINISHED"}
 
 class AW_OT_world_space_paste(bpy.types.Operator):
-    bl_idname = "autowalk.world_space_paste"
+    bl_idname = "pose.world_space_paste"
     bl_label = "World Paste"
     bl_description = "Paste world space transforms. Apply stored matrix to active bone"
     bl_options = {"REGISTER", "UNDO"}
 
     @classmethod
     def poll(cls, context):
+        if not hasattr(bpy.context.view_layer, 'world_space_store'):
+            cls.poll_message_set("Nothing To Paste")
+            return False
         return context.object and context.mode == 'POSE' and context.active_pose_bone
 
 
@@ -37,13 +40,16 @@ class AW_OT_world_space_paste(bpy.types.Operator):
         return {"FINISHED"}
 
 class AW_OT_world_space_paste_next(bpy.types.Operator):
-    bl_idname = "autowalk.world_space_paste_next"
+    bl_idname = "pose.world_space_paste_next"
     bl_label = "World Paste Jump"
     bl_description = "Paste world space transforms and keyframe available chanels\nThen jump to prev/next key"
     bl_options = {"REGISTER", "UNDO"}
 
     @classmethod
     def poll(cls, context):
+        if not hasattr(bpy.context.view_layer, 'world_space_store'):
+            cls.poll_message_set("Nothing To Paste")
+            return False
         return context.object and context.mode == 'POSE' and context.active_pose_bone
 
     prev: bpy.props.BoolProperty()
@@ -86,13 +92,16 @@ class AW_OT_world_space_paste_next(bpy.types.Operator):
         return {"FINISHED"}
 
 class AW_OT_world_space_paste_next_frame(bpy.types.Operator):
-    bl_idname = "autowalk.world_space_paste_next_frame"
+    bl_idname = "pose.world_space_paste_next_frame"
     bl_label = "World Paste Jump Frame"
     bl_description = "Paste world space transforms and keyframe available chanels\nThen jump to prev/next frame"
     bl_options = {"REGISTER", "UNDO"}
 
     @classmethod
     def poll(cls, context):
+        if not hasattr(bpy.context.view_layer, 'world_space_store'):
+            cls.poll_message_set("Nothing To Paste")
+            return False
         return context.object and context.mode == 'POSE' and context.active_pose_bone
 
     prev: bpy.props.BoolProperty()
diff --git a/__init__.py b/__init__.py
index c7e9f81..95fdb55 100644
--- a/__init__.py
+++ b/__init__.py
@@ -4,7 +4,7 @@ bl_info = {
     "name": "Auto Walk",
     "description": "Develop a walk/run cycles along a curve and pin feets",
     "author": "Samuel Bernou",
-    "version": (1, 4, 3),
+    "version": (1, 4, 4),
     "blender": (3, 0, 0),
     "location": "View3D",
     "warning": "",
diff --git a/fn.py b/fn.py
index 90065e6..e56d4b3 100644
--- a/fn.py
+++ b/fn.py
@@ -58,11 +58,16 @@ def convertAttr(Attr):
 
 
 def get_gnd():
-    for o in bpy.context.scene.objects:
-        if o.type == 'MESH' and o.name.lower() in ('ground', 'gnd'):
-            return o
-    # nothing found
-    print('ERROR', 'No "gnd" object found')
+    gnd = bpy.context.scene.anim_cycle_settings.gnd
+    if not gnd:
+        for o in bpy.context.scene.objects:
+            if o.type == 'MESH' and o.name.lower() in ('ground', 'gnd'):
+                return o
+    if not gnd:
+        # nothing found
+        print('ERROR', 'No "gnd" object found')
+    return gnd
+    
 
 
 def get_follow_curve_from_armature(arm):
@@ -412,10 +417,12 @@ def snap_curve():
     
     curve_act = None
     anim_frame = None
+    
     # if it's on a snap curve, fetch original
     if '_snap' in curve.name:
         org_name = re.sub(r'_snap\.?\d{0,3}$', '', curve.name)
         org_curve = bpy.context.scene.objects.get(org_name)
+
         if org_curve:
             const.target = org_curve
 
diff --git a/panels.py b/panels.py
index a1bd5bf..b83807b 100644
--- a/panels.py
+++ b/panels.py
@@ -135,7 +135,7 @@ class AW_PT_anim_tools_panel(bpy.types.Panel):
         # layout.operator('autowalk.contact_to_ground', text='Ground selected feet', icon='SNAP_OFF')
 
         row = layout.row()
-        row.operator('autowalk.world_space_copy', text='Copy Pose', icon='COPYDOWN')
+        row.operator('pose.world_space_copy', text='Copy Pose', icon='COPYDOWN')
 
         # row.operator('autowalk.world_space_paste', text='Paste', icon='PASTEDOWN')
         # row = layout.row(align=False)
@@ -150,11 +150,11 @@ class AW_PT_anim_tools_panel(bpy.types.Panel):
         # row.operator('autowalk.world_space_paste_next_frame', text='Next frame', icon='FRAME_NEXT').prev = False # Paste Next frame
         
         row = layout.row(align=True)
-        row.operator('autowalk.world_space_paste_next_frame', text='', icon='FRAME_PREV').prev = True
-        row.operator('autowalk.world_space_paste_next', text='', icon='PREV_KEYFRAME').prev = True
-        row.operator('autowalk.world_space_paste', text='', icon='PASTEDOWN')
-        row.operator('autowalk.world_space_paste_next', text='', icon='NEXT_KEYFRAME').prev = False
-        row.operator('autowalk.world_space_paste_next_frame', text='', icon='FRAME_NEXT').prev = False
+        row.operator('pose.world_space_paste_next_frame', text='', icon='FRAME_PREV').prev = True
+        row.operator('pose.world_space_paste_next', text='', icon='PREV_KEYFRAME').prev = True
+        row.operator('pose.world_space_paste', text='', icon='PASTEDOWN')
+        row.operator('pose.world_space_paste_next', text='', icon='NEXT_KEYFRAME').prev = False
+        row.operator('pose.world_space_paste_next_frame', text='', icon='FRAME_NEXT').prev = False
         row.scale_x = 2
 
 class AW_PT_nla_tools_panel(bpy.types.Panel):
diff --git a/properties.py b/properties.py
index c195417..e43ae9d 100644
--- a/properties.py
+++ b/properties.py
@@ -35,7 +35,7 @@ class AW_PG_settings(bpy.types.PropertyGroup) :
 
     start_frame : bpy.props.IntProperty(
         name="Start Frame", description="Starting frame for animation path", 
-        default=101, 
+        default=100, 
         min=0, max=2**31-1, soft_min=0, soft_max=2**31-1, step=1, options={'HIDDEN'})#, subtype='PIXEL'
     
     end_frame : bpy.props.IntProperty(