Hi!
What about grouping savegames by its map so you can play several maps in parallel and keep your old ones in a well arranged manner?
Keep the list with savegames to the left but use the right screen for a gallery icons of the maps you generated (custom tilte and seed). Selecting the map causes the list to the left displaying all savegames belonging to the selection.
Would be nice to have after preformance patches, X Rails, siganls/waypoints, more complex industry and less industry patches 😉