Can I make an ender portal on creative?

I've updated Minecraft PE, and in the update notes it states that they've added the End. But when I made a new creative world and built a portal, it didn't work.

I've been looking online at tutorials, but cannot get the portal to open. So how do you create an Ender Portal?

I couldn't do it at first either, but I figured it out: You need to stand inside of the portal whilst putting in the eye of enders. If you stand anywhere else but inside of it, it won't work.

To create an end portal, you need to make a 3x3 circle of end portal blocks. Then, take away the edges and fill in the rest with eyes of ender. The problem that most people have with making end portals, is that they get the placement wrong.

You can place end portals so that they are vertical or horizontal. Here is an image of one: If you look at the front of one of the blocks, you can see that it has a little 'u' shape. You want to make sure that it points toward the middle. You can do this by facing the middle of where you want to make your portal, and then move to the sides of it whenever you finish a line of blocks.