if the bottom activates then there the top one is a block and you can make a subselection with the second one.
use the dropdown menus to select a propertie block to edit.click the edit button after choosing a group in the dropdown menu.Adjust properties to something you want (or leave everything default if you want to see if the editor creates proper mod files).Select a country and click load country.Click load game and select the game folder.Version 0.4 is a rework of a lot of features, the code is a lot more efficient now. You can read, edit and save all country,government,ideas,religions and techgroup properties.
The editor is written in C# and available under the GPL v2 license. This editor will first focuses on country editing with subeditors available for culture, government, ideas etc editing. This is a mod editor for the grand strategy game Europa Universalis 4 made by Paradox Interactive.