LED Wizard 8 contains various Operating Modes that enable you to perform certain tasks. The two primary modes are Layout and PowerFlow.
Layout Tool
When you first launch the software, the Layout Tool is active and you are operating in the Layout Mode. This is the standard mode for basic operations such as moving objects around, using control points to scale, extend/condense, rotate, etc., grouping and ungrouping, adding color to an object, and drawing shapes, just to name a few.
The Layout Tool is the main, default operating mode.
PowerFlow Tool
The PowerFlow LED Tool is focused on laying out and editing LEDs, and is the other main operating mode in the software. To enter PowerFlow from the Layout Tool, select the objects you want to populate with LEDs and then click on the PowerFlow button in the PowerFlow Tab.
When you're in PowerFlow, everything is about LED modules. You can auto populate letters and cabinets, click and drag to enter modules, use the module editing tools to reposition or add and subtract modules, add power supplies, and many other functions.
For new users, sometimes there is confusion about certain functions being available or not, and usually it has to do with which operating mode you're in. Version 8 has blurred this line a little bit, in the sense that you can now Scale an LED object in the Layout Tool, for example.