Templates can be set as defaults in a couple of different scenarios

As the default for a board

To configure as a default for a board

1. Open the Approval Workflows item view on any item from your board
2. Click on configure templates
3. Expand the details the desired template
4. Click on “Use a default for board”

As the default for a group

Setting a template as a default for a group will give this template priority over the configured board default

To configure as a default for a group

1. Open the Approval Workflows item view on any item from your board
2. Click on configure templates
3. Expand the details the desired template
4. Click on the dropdown under the heading “Use as default for groups**”**
5. Select the groups that you want to default to using the desired template

As the default for new board

The default for a newly created board can be configured if you often create new boards and don’t want to have to set up the default template every time you do so.