Good Evening ;-)
My English is not really the best but - Try and Catch Error.
Mainmenu
Implements of Pictures (in jpeg / png) or Videos (in mkv / mp4 codec) because it looks more "spezific" for the game.
At this moment i use a empty map with a "skybox" as picture and set this to my menu background. Its a good workaround but not the golden of an egg.
Then a GUI to make the translations in the Engine.. not outside in a *.csv.
Voxels
possible to make greater voxels. Bigger then 32x32. I know its hard for the ressource for a game but sometimes i think with higher res of the voxels some games looks better.
Oh, i found a bug, If you import a Voxel then the Save button does not light up. Its really annoying every time a change of the voxel to save the importet voxel. :-) (after a change the button is clickable.)
Some Functions
Hiding the Map, the Inventory by script functions
EnableMap (true / false)
EnableInventory (true / false)
A GUI for creation of Global Vars and an overview of all Global Vars. So it is possible to create GlobalVars before the game starts. and no script is need for this :-)
=> Edit this later if i have more ideas <=
Ill hope this will help your or not :-)
Greetz
Pac