This is where you will design your game. There are several options you can use in your game's room. To create a room, either right click the rooms folder and create new or click the create room icon, located next to the create object icon. The image below shows the "Room Editor."
Adding Objects
To add Objects, you first select the object you wish to add by clicking the box under "Object to add with left mouse." Once you have selected an object, left click to add it. You can delete objects by right clicking. For more controls read the bottom left box.
Controls
LMB + ALT = No Snap LMB + Shift = Multiple LMB + Ctrl = Move (Already Placed Objects) RMB + Shift = Delete All RMB + Ctrl = Popup menu
Other Options
Delete Underlying This causes game maker to delete any objects that overlap. This becomes annoying and should be kept off unless you don't want any overlapping objects.
Backgrounds Under the backgrounds tab you can select the color and/or image you want in the background.
Settings Under settings you specify the size of your room, the name of your room, and the creation code/
Tiles Under tiles you can use tile sets like objects to ad graphics to your game.
Views Under views you can set up to 8 views to be used in the room. View will be explained in a later chapter.