It is not possible to report on users SIMS permissions groups in the normal reporting/design report area of SIMS, however there is a workaround as below:
Go to Focus > System Manager > Manage Users.
The Print button will become live, click Print and choose the option to Export to a web browser.
After the report has loaded in the web browser, right click and choose Export to Microsoft Excel, click Import and OK.
The report should now display in an Excel workbook.