When a user save a template (of a filled in form), a button is presented ‘Share Templates with group’. When the button is clicked, a list of Roles is presented, from which the user can choose 1 Role. The administrator can give the Role to Groups, so the Group Manager can manage the members of the group, without the need for administration rights.
As all security is organized using Roles (except Granular Ticket Access), this is best way to organize the sharing of templates.
Switch to enable or disable to option to share a template
This is done as specified above. See Admin > general settings > Forms