Adding a choice between PRISMA Diagram 2009 and 2020#521

The current PRISMA diagram is based on the latest PRISMA template (2020), adding the choice of using the previous template of 2009 would be great! So it won’t include the whole grey area (identification of new studies via other methods).

Thanks @G.sela ! I definitely understand (I find the 2009 version slightly more interpretable). I’d love to get feedback from the wider user base– is 2009 commonly used?