To change the default sample types for your organisation navigate to Organisation Sharing in the Organisation Admin panel and choose in the dropdown menu Sample type Templates. 

To share a sample type template select the group the sample type template is in, then select the sample type you want to share and click Add as Organisation Template. To remove a template click on the bin on the right side of the screen. You can also remove the system templates to completely customize the available default sample type templates available for each group. 

When the Organisation Admin shares a sample type template from a group, other groups can add this template to their group. When the shared sample template is deleted in the original group it is no longer possible to add this sample template to a group. For an Organisation Admin it is possible to make a group and share the template from this group. Groups that use an organisation-wide shared template can edit these templates without changing the original template. 

Note that when one of the default sample types is added to a lab, a copy of the sample type template is created to allow additional customization within each individual group without affecting the sample type configuration in other groups.