⚠️ IMPORTANT: Be sure to restart Blender after installation.
Drag the ZIP file directly into the Blender window.
Open Blender → Edit → Preferences →Get Extensions.
Click "Install from Disk" and select the downloaded ZIP.
Enable "Bone & Weight Splitter."
Open Blender → Edit → Preferences → Add-ons.
Click "Install...", select ZIP, then "Install Add-on."
Activate "Bone & Weight Splitter."
After installation, open the N-panel in the 3D Viewport and confirm that the Bone Split tab is visible.
⚠️ IMPORTANT: Be sure to restart Blender after installation.