Download latest release here.
Unzip content of downloaded file and run vSharpStudio.exe.
Create Visual Studio 'AQuickStartSample' solution with C# console 'AQuickStartSample' project and C# class library 'DbLayer' project.
.
For 'AQuickStartSample' project add reference to 'DbLayer' project.
Business model editor is storing model in a file with 'vcfg' extension.
Click create new configuration button 
.
Save as dialog will be opened to select folder for new configuration file.
Choose solution folder, enter file name for configuration, and click button Save to save it.
Inside business editor select node 'Apps'
Click insert child object 
to create Solution object for model.
Select solution file. Create child object of model solution for 'DbLayer' project.
