Hello friend!
Do you remember I told you that I would later look into the grid system? Well, I did it hehe
I just uploaded version 1.6, and it includes the full Pseudo-Grid and Hierarchical Stacking system. It automatically handles switching from vertical to horizontal axis, includes a new expansion effect called 'Ghost Slot,' and completely revamps the input system to make it context-aware.
I wrote a detailed Devlog explaining everything (The Pseudo-Grid Revolution! - Juicy Navigation Overlay: Physics-Based UI for Godot by Minari Studio).
I hope it helps you and that you like it :D!