Sometimes, you just don't have the time to wade through a long blog post about whatever it is the blogger thinks is important. You just came to find the answer to your question:
How do you make guidelines?
To make guidelines click and drag starting from the rulers on the side of your work space. For vertical guidelines use the right ruler and to make horizontal lines use the ruler at the top of your work space.
To move the guidelines click and drag the guideline as you move it to the new location.
To delete the guidelines click on the guideline and use the delete key.
Remember, guidelines are only available in the Designer Edition of Silhouette Studio. For some other reasons to get the designer edition, check out my other posts here and here. Thanks for watching/reading. See you again soon for another Mini How To!