Blender 4.2 LTS and our script are not freinds

The scripts in that video is for bone layers.
Bone layers were replaced with Bone Collections in 4.0+

Script would need to be rewritten from scratch.

Hi Aviv,

Here’s how you can fix this.  Why am I making you fix this??  
So you can learn more.
You know what they say, “teach a man to fish…..and he’ll become a vegan”
or something like that.

Ok in the text editor find the section underneath where it says “def draw(self, context):”   on line 21.

That is the old api.

Nowadays it should look like this…

(bear in mind the ‘Layer 1’ should match the name of the collection you have in your file, and the text value can be whatever you want)

I’ve updated the Tidy script so it will switch to pose mode and actually move the bones instead of just assigning it to the collection. I’ve also made it more efficient(I hope). It is the rig_tidey_bone_layers4.0.py.
https://drive.google.com/drive/folders/1vVy5_HLU6bodWIKrSod6nbtKbnS4vRcf?usp=drive_link

For those who just want to see the code without having to download:

import bpy
# Get active object
rig = bpy.context.active_object
#Check to make sure it's an armature.
if rig and rig.type == "ARMATURE":
    #Switch to pose mode
    bpy.ops.object.mode_set(mode='POSE')
    #Set array for Collection name and Bone name search
    Type = ["DEF","MCH"]
    #Loop thru Type. First is DEF then MCH.
    for TName in Type:
        if TName == "DEF":
            Deform = True
        else:
            Deform = False
        #Get collection
        tcol = rig.data.collections.get(TName)
        #If collection doesn't exist then create it
        if not tcol:
            tcol = rig.data.collections.new(TName)
        #Add dash to the Type for searching. 
        TN = TName+"-"
        #loop thru all bones
        for bone in rig.pose.bones:
            #Make sure bone isn't selected
            bone.bone.select = False
            #Check if bone name contains the search type. DEF- or MCH-
            if bone.name.startswith(TN):
                bone.bone.select = True
                bone.bone.use_deform = Deform
                bone.lock_location = [True, True, True]
                bone.lock_scale = [True, True, True]
                bone.lock_rotation = [True, True, True]
                if bone.rotation_mode in ['AXIS_ANGLE','QUATERNION']:
                    bone.lock_rotation_w = True
        #Moves all selected bones in pose mode to the collection.
        bpy.ops.armature.move_to_collection(collection_index=tcol.index)