How can i delete an endpoint group at endpoint inventory?

Hello Community, i'm started working with Trend micro, and i can't delete a group from endpoint inventory section.
One partner deployed the Endpoint here and created a lot of groups to manage the devices. But now, we want to change it in another structure, and we can't delete the groups.
I have the master administrator role, and if i create a new group at a subsection, then i click on the 3 dots, i can modify and delete this group. But if i try to delete an existent group not created by me, i just see the option "create a group" to create another group.

Can anyone help me?