Getting started

1. Install the zip: Edit ▸ Preferences ▸ Add-ons ▸ Install from Disk, then enable Modifier By Collection.
2. Select a collection in the Outliner and open the Modifier tab of the 3D Viewport sidebar (press N).
3. Press + to add a modifier, choose its type, and set its values. Every mesh in the collection gets it.
4. Clear removes the collection's modifiers from its objects and empties the list.

Each entry has an on/off switch and a Position: the top or the bottom of each object's stack. The add-on's modifiers are named MBC_…, and it never touches any other modifier.

Recursive applies the list to nested collections as well. To leave one object out, select it and tick Exclude from Collection Modifiers in the MBC Object panel.

Save Preset and Load Preset keep lists you reuse; Export and Import write and read them as JSON. Copy to All Collections and Copy to Marked copy the list elsewhere. Apply to Geometry bakes the modifiers into the meshes and clears the list.

Open Collection Manager (Ctrl+Shift+M) shows every collection and its modifiers at once.