This is a quote from your support ticket on the same question(for anyone concerned):
"The Standalone Designer source code is not provided as it is our own end-user application, illustrating the possibilities of the reporting engine. It is granted for use by power users without Visual Studio installation. The tool can be used as a part of your solution as it is and can be distributed freely, without additional modifications.
Please, let us continue the technical discussion in your ticket, so we can avoid splitting information between threads.
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