Can I skip levels?
Not mid-course: the path is progressive and each level builds on the previous one. The only way to start higher up is the placement test, available at the beginning, which can place you directly in level 18 or 28 depending on how you type.
Why there are no shortcuts
Each level introduces specific keys and requires a calculated volume of practice so that those keys become automated. Skipping it doesn’t save you time: it leaves you with gaps that reappear later as recurring mistakes and slow you down more than what you would have “saved”.
What you can do is use the training series and competition modes from the very beginning: there is no order or lock there, and they use the entire keyboard.