Yes, 4.7 should be compatible.
Grid Placement 6.0, which I’m aiming to have out tomorrow, supports Godot 4.5 and up. I’m currently using it with 4.8 in my own game, and I plan to keep it working with newer Godot 4.x versions as they come out.
The older 5.x version still supports 4.4+.
And thanks for the kind words. I’m glad it’s the kind of tool you were looking for. I’m planning to keep improving the plugin over time.