Many Markdown editors lets you write slides. But once you want to edit your slides, rearrange them, change settings, everything becomes a bit of a hassle because text editing is not optimized for styling presentations.
Hyperdeck has a build-in UI that makes it easy to adapt the presentation just the way you want it. In the following example, you can see how to change the font size of a headline.
This form of editing works for all elements of Hyperdeck, including the Slide itself. The means to do that are called Inspectors and the next couple of chapters will go into detail about them.