Can I assign the editor on particular user?

Yes, you have 2 options regarding DropEditor in Joomla. You can assign a Joomla User Group to a specific DropEditor profile: go in Component > Dropeditor > Profiles You can also assign DropEditor by default in the Joomla user profile

¿Puedo asignar el editor a un usuario en particular?

Sí, tienes 2 opciones con respecto DropEditor en Joomla.

Puede asignar un grupo de usuarios de Joomla a un perfil específico DropEditor : vaya a Componente > Dropeditor > Perfiles
También puedes asignar DropEditor por defecto en el perfil de usuario de Joomla

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