Here’s something that might be useful: intel bookmarks. This might only apply to the larger games (e.g. 64 players). Under the “All” and “None” buttons, have X rows of the form “Set 1”, “Save”, “Clear”. When you have a group of symbols selected and click “Save,” that “Set X” button becomes active. From now on, clicking/tapping it selects the group of symbols you had selected when you clicked/tapped “Save.” Clear, obviously, removes that button’s settings. There’s also an argument for not having a Clear button and simply letting the player save over their previous setting, with a prompt asking if they’re sure they want to do that.
Now, I can have a button for my allies, another for a competing alliance, another for a second competing alliance, and so on. Big time saver for 64-player games!