Couple of ways I can see.

One, is at the dataset level, and insert your extra rows in there. Provided that the query is only for your report set,...

Before anything, I do need to ask, why are you storing data in the system databases? The master database should not be used to store your own data; you should...

Export the report to a file type (i.e. xlsx, pdf, etc). Open the file and then Print in there, in the pages options, define your print page requires. For example...

Where is the source data coming from, and how much control do you have on it? Could you in stead use A User Defined Table Type? For example:
[code...

If you're running in design mode in Visual Studio's SSDT, then the user account being denied is your user account (as you are the one running the package). Thus your...