Unpack the printing glass, apply an adhesive varnish evenly to the top surface, place it on the buildplate and fix with the clamping clips.
Calibrate the buildplate via automatic procedure in Maintenance>Calibarate > Buildplate.
Calibrate the Z-axis via automatic procedure in Maintenance >Calibrate Z-axis.
Start the XY offset test by choosing Print > NozzleOffsetTest.gcode on the printer screen. The test procedure is described in detail in the Maintenance section.