The default settings for gOS cause the icons to be quite large and require lateral scrolling to see all of your applications. You can resize the shelf to a smaller size and which will shrink the size of the icons. This will allow you to see more icons at one time.
1. Right-click the IBar.
2. Mouse-over shelf 1 and select Shelf Configuration.
3. You can use the Size radio buttons to quickly set the size, however it only gives you 4 options. Instead, click the Advanced button.
4. Go to the Size section and use the Shelf Size slider to set the pixel size of the shelf.
5. Click the Apply button to view your changes.
6. When finished, click the Close button.