You can create your own custom template in Report Studio. Do this when you are going to produce a number of reports of the same type. To create a report template, create a new report. An existing report can also be used as a new template.
A template contains the following items:
Avoid using query items, calculations or filters in a template. These items are package dependant and should not be used globally. Errors occur in reports that are created with templates containing these items.