You could also hold down Alt and type 0114 on the numpad and the r will show up. But that's a lot of work for a fairly common letter. Go to the dollar store and buy one of those $10 keyboards. I do that every time my kids spill a drink on the keys. It's easier than fighting with sticky keys.

As for the Y for altitude issue, lately I've been just using heightfields again, instead of planet-sized fractal terrain. Most of my renders are down near the ground looking up at a mountain range, so no fractal terrain necessary. Go into the heightfield location and set the centre of the field to 0,0,0. Move your render camera there too and pan around until you've got a good scene. Or you can just keep changing the seed of the heightfield until something appealing shows up.
Same thing works with fractal terrains. It's probably better to keep your camera at or near 0,0,0 and keep changing the seed of the terrain until a good layout appears. Bring the mountains to you instead of chasing them all over the globe in other words.