No No No.... There's a button on your keyboard which says shenanigans. Press shenanigans, Then look a few buttons to the right of that, It should say shenanigans too but in a different way.
Now what you do is shenanigans the shenanigan buttons. That is, shenanigans shenanigan and shenanigan at the shenanigans of the shenanigan.
Remember its right 41t and right c0ntr01. The menu should appear suddenly. Most of the secret elements cannot be made from other elements. However, If you freeze WTRV before it becomes WATR, it will turn into RIME. You can also make FOG. Just spark RIME and it should turn into FOG, or mix BOYL with WATR.
If you want the other elements, you can also use the console if the menu isn't working. Just make some DMND and then type in the console: 'set type dmnd *secret element*' You can find the elements on WIKI. ;-)