Data base applications allow the analysis of complex and large data. There are many analysis functions showing different relations between the data. End users have often new requirements to see data and relations which can not be shown by the existing analysis software. They need possibilities to create new user interfaces to fit their requirements. Generally, users don't have programming knowledge and cannot wait until the development department has specified the corresponding software. They need a tool which can easily and quick produce corresponding results. The tool must allow navigating via complex data structures of data bases. This paper discusses a tool that allows end users to specify interactive applications like spreadsheets. The tool supports OLAP applications and is based on the Qt Designer.