1) From the profile dropdown click My Data.

2) Click Dataverses.

3) Click the dataverse for which you would like to create a template.

4) Click Edit, then click Dataset Templates.

5) In the top right corner, click Create Dataset Template.

6) Name your Template, then edit the Metadata to your preference. Finally, click Save + Add Terms.

Outcome

You will have created a dataset template in your dataverse.