Someone else made the suggestion in another thread - and I agree - that having tabs to divide the zones up on the portal list would make it much simpler to find a location, rather than scrolling down through multiple listings on a single page. Not so bad when you're just in Cyseal, but even by mid-game it gets rather tedious.
Also (from the same suggestion), make the End of Time the first on the list, since it's most likely you'll return there more often than anywhere else.
Maybe someone can mod this in, using a system akin to the one in the inventory window.