To change the coordinate system showing in the viewer, first click the viewer settings, then navigate to "Projection", and click on "edit":

Now you will see a new pop up window and now you can choose the corresponding coordinate system you need to show:
(EPSG global)

(Local Grid)

Please make sure the EPSG code are valid or if the site is a local grid site it has been localised before.
Any questions please don't hesitate to contact us at support@propelleraero.com.

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