2. I created "Common" folder in the root folder (Custom) from the level of Visual Studio). It updated the solution fine in NS Explorer but then I noticed it displayed only last class added to this custom folder. Additionally after some time the folder ("Common") suddenly disappeared from NS Explorer (it is still visible from VS).
As mentioned before we should be able to use other folders as well (Common, Utilities, etc.) and be able to select files from there to export NinjaScript
Comment