To install a new template, go to Admin, and click on “Template Library”.
Click on the template you would like to use.
For each template, you can choose to install the entire Package, which includes the workspaces as well:
Selecting “Use Package” will install all of the workspaces in the template group.
Or you can click on the workspace you want, and click on “Use Template. This will only install one workspace, and will ask what module you’d like to install the template into.
This assumes that you’ve already created a module that your workspace can be installed to.