We don’t have any additional library.You can create your own library yourself and export/import them. TeslaSCADA2 library format - *.tsp2lib. How to do it you can read it in User manual. Chapter "User-defined library"
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Yes you can.
To create your own object you should create User-defined library in Add new graphical object dialog window Collections section. To do this Right click on User-defined and choose New Library. In dialog box type name of your library.
Then on the screen Group objects like on image
Right click on it and choose Add to library you created.