In Omniscope you can export any data being shown in a view.
To do so, first click on the 3 dots menu in the top right corner and select "Show View Menu"
Then you will see each view showing a small 3 dots menu as well which contains several actions, (e.g. to Maximise a single chart) among them the ability to export and download the view data as a CSV file:
If you cannot find the "Download view data" button, it's because your publisher has not authorised your user to export data.
To authorise your user, go to the Project Files page -> 3 dots menu -> Edit Permissions,
find your Group and set the "Export view data" permission on.