Event import/export/backup

• Single file events (.qbe extension) are SQLite files. They can be used for backup purposes.
• SQL events can be exported to *.qbe file.
• qbe file can be imported as SQL event

Event backup

• single file - copy qbe file
• SQL server - File/Export/Event (*.qbe), export event to qbe file

Event restore

• single file - open qbe file
• SQL server - File/Import/Event (*.qbe), import qbe file when connected to SQL server. Currently opened event is not rewritten by imported data, the new event is created and opened after successful import.