Hat item as alternative to new cat ear preset?

Hi.
- clone a hat, export the blend, open;
- in 3d view select the hat, hide it with the eye icon;
- click on Filter and enable cursor;
- expand the rig, make ears visible and selectable;
- select them, Object - Duplicate objects, in 3d view press Esc to confirm;
- select ears.001, Object - Parent - Clear and keep transforms;

- hide the original ears;
- with ears.001 selected, switch to Edit mode ( TAB );
_ select everything with A, Mesh - Merge - By distance;
- enable X-ray, select vertices, move them with G;

- click on the hidden meshgroup of the hat, check what cut number it has, then delete this meshgroup in the outliner;

- give ears.001 the same cut, save, import back