When applying a template to your personalized page (such as home page, project overview page, and basic dashboards), you have two options.
Replace (rewrite template)
Delete all tabs from the current page and replace it with modules from the chosen template.
Add tabs (update template)
Add tabs from a template in addition to tabs on your current page.
When adding new tabs from a template, you can use drag and drop feature to select the required position of the tabs.