diff --git a/leenkx/blender/lnx/props.py b/leenkx/blender/lnx/props.py
index 23be0a8..4a5a666 100644
--- a/leenkx/blender/lnx/props.py
+++ b/leenkx/blender/lnx/props.py
@@ -541,8 +541,10 @@ def init_properties():
     bpy.types.Node.lnx_watch = BoolProperty(name="Watch", description="Watch value of this node in debug console", default=False)
     bpy.types.Node.lnx_version = IntProperty(name="Node Version", description="The version of an instanced node", default=0)
     # Particles
-    bpy.types.ParticleSettings.lnx_count_mult = FloatProperty(name="Multiply Count", description="Multiply particle count when rendering in Leenkx", default=1.0)
+    bpy.types.ParticleSettings.lnx_auto_start = BoolProperty(name="Auto Start", description="Automatically start this particle system on load", default=True)
+    bpy.types.ParticleSettings.lnx_is_unique = BoolProperty(name="Is Unique", description="Make this particle system look different each time it starts", default=False)
     bpy.types.ParticleSettings.lnx_loop = BoolProperty(name="Loop", description="Loop this particle system", default=False)
+    bpy.types.ParticleSettings.lnx_count_mult = FloatProperty(name="Multiply Count", description="Multiply particle count when rendering in Leenkx", default=1.0)
     # Actions
     bpy.types.Action.lnx_root_motion_pos = BoolProperty(name="Root Motion Position", description="Enable position root motion", default=False)
     bpy.types.Action.lnx_root_motion_rot = BoolProperty(name="Root Motion Rotation", description="Enable rotation root motion", default=False)