During the course of the project we held hand-on-sessions with researchers within the project group and with external partners. The results of the queries of these researches provided feedback for the further development of search and analysis facilities and the interface design of the ePistolarium tool. Here we show some recent experiments with the tool with suggestions for improvement that we hope to incorporate in future releases. We also have the intention to build a virtual research environment around this tool with annotation possibilities. We thank all researchers for their feedback that enabled us to improve the quality of ePistolarium and we welcome suggestions in the future.