Nikech

Yeah, I thought about that too after posting, there's no reason why it shouldn't work, especially if you can disable the touchpad (so you won't move the cursor by accident) while keeping the buttons active.

Try pressing the Fn key (left bottom corner) and the i key at the same time (i has a blue 5 on it too). My guess is that is the same as pressing numpad 5 on a regular keyboard. If that doesn't work, try experimenting with the Fn key and I.

So what's the best f2p way to get to 75 cooking nowadays?