I am crating a minecraft inspired story game called Operation Blox and I need to created a gridded building system like the one in bedwars. It needs to have the hotbar like bedwars too. If you know how to do this then please leave a comment
Here I found this guy who is making a game like bedwars go through is playlist of videos to see if you can find what you want. He has about 11 videos. See if one of them is the placement system.