The third subtype is takthīr fī al-mafʿūl, multiplicity associated with the affected objects.
قَطَّعْتُ الثِّيَابَ
Translation: I cut many garments or cut the garments into pieces.
There is one speaking agent, while the affected items or resulting pieces are multiple. That is different from having many agents.
ExampleMultiplicity
جَوَّلَIn the action
مَوَّتَ الْإِبِلُIn the subjects
قَطَّعْتُ الثِّيَابَIn the objects