I am currently working on a hand-crafted gamemaster screen made out of wood for a good friend of mine. I am planning on not using the DnD 5e "orignal" GM Screen as inlay, but creating a unique layout. Since I am not that well versed in D&D I am now wondering which information would be good and useful for the DM that might be needed during campaigns.
I was also thinking of adding some blank boxes with headings, where the DM might write some Information that is useful for him depending on the campaign (this would of course be erasable since I am going to foil the inlay to be then written on with whiteboard markers).
Any suggestions for the pre-written information and the blank boxes to be written on are very appreciated. Also any additional advice or ideas are very welcome.