It may also be helpful to use the "Add Comment" feature to label scripts, found in the same menu as the "Clean Up Blocks" option. This will generate a text box that can be typed on. For example, it can be used to write the category of code that the script falls in, e.g. movement, or cosmetic, or it can include what the script does in the project. The benefit to this is that along with having just a textbox by itself, it is possible to create a text box connected to a selected block by right-clicking on the block and selecting the "Add Comment" option.
After you have created your scripts in the editor, right-click the background and select "Clean up Blocks". Your scripts should be automatically stacked in a single column. However, this may not be the best way to organize scripts, as it can be useful to view multiple scripts side-by-side. To do this, you can move scripts around the editor by dragging the top block of each script.