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I was never big on elaborate codes myself but I thought it's a neat idea to make it like an invitation and the phone code seemed to perfectly match the "fake ambiance" I wanted to create.
As for scrolls, from what I understand, when you click on a scrollable item you can use up and down arrows for the usual, vertical and left right arrows for horizontal scrolls. But I'll add a non coded version! Thank you guys for your pointers and input :3