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Here you can select the language in which to use the system. Currently you can choose between English, Russian, Italian and Bulgarian.
The Style, which seems to site. Styles are available: Black, Blue and Grey. You will see the Username with which you have logged in the System and the Shop where you work / you selected entry.
If you have not added to Company account, you can do it from Here, but if you've already done, you will see it. If you added more than one company, from here you can switch between them.