How should I print the ISO Draft template views? Would it be only in the sheet, without clicking in the sheet setup and enable the background? Or should I enable the background (e.g., sheet setup -> view -> background -> A3)?
You can use either method......but be aware both will print dynamically to the "sheet size" that is allocated, regardless of how the background is set. [with the exception of localised printing via - print area]
The default background sheets can be customised to your liking, when you show them.....look for the "Background" toggle button in the "View" tab....this displays the various sheets along with the working sheets.
Sean Cresswell Design Manager Streetscape Ltd Solid Edge ST10 [MP3] Classic [x2 seats] Windows 10 - Quadro P2000