WarpCow

I haven't played an ATC in decades and wanted to give Tower 3D! Pro a try. Unfortunately I already fail miserably in the tutorial. When it tells you to "Taxi to Runway", this option does not seem to exist in Pro. I can select "VAL788 Runway 28" just to get a "Negative". I don't see an option to taxi, and handwriting it also results in a "Negative". I've been trying this for 30 minutes and feel a bit like an idiot, so I'm hoping someone can help me here =) Edit: I was able to solve it using the Pushback, I suppose Pushback is required in Pro, might be necessary to update the tutorials for this.