Impossible. If you are in Creative Mode, you can not craft!!
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Yes you are able to craft things in creative mode just click E
and scroll the selection until you find a workbench, the workbench
will allow you to craft.
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To fly in survival mode you need to craft the eye of ender
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There really is no need to craft in Minecraft PE Creative Mode.
You have an infinite amount of every single item and block in the
game in your inventory already exept 4 command blocks