In my spare time, I decided to rework the undead summoning table, making it more up-to-date and user-friendly.
Thanks to Protoss for the idea, the ready-made structure, and the button, which I didn't touch.
You can adjust its positioning in the UI/Info/Button/Info.(WindowMSButtonShared).xdb file.
The mod was tested at a resolution of 1920x1080. If the window is displayed incorrectly at other resolutions, I will try to fix the problem.
Reference information:
The yellow plus sign next to the creature's miniature indicates that it also applies to its upgraded versions. This is done to save space.
The yellow arrows, in turn, indicate both upgrade options for the creature.