As an administrator, you can enable the company permission to always have the process objectives pinned to the top of the diagram content menu and set the frequency of task emails.
Pin Objectives
Open the company details from the administrator settings page and select the Default Permissions tab, switch the Pin Objectives toggle on (green) to enable this setting for the whole company.
If this setting is not set, users will be able to select their own preference in their user profile.
Set Email Frequency
Open the company details and select the Default Permissions tab, select the preferred frequency from the drop down menu and save the changes.
If None is selected, users will still be able to set their preference in their user profile.