Also, when playing as a faction leader, you cannot invite nations that you do not share a border with into your faction, nor can you unlock a focus (Territorial expansion) that allows you to do that, because to unlock a focus (The New Order) that precedes it you need to not be a member of any faction, which you are as a leader of one.
Also, please make it possible to drag-n-move the screen, at least in the focus tree menu.
Also, faction and nation stats displayed in the pop-up menu on the left would be nice. Regions, population, divisions, factories, capital city. And adding a toggle to check factions stats in the f5, f6, f7 and the f8 menus too.