Shift-Tab for triggering documentation popup

[Atcold]

I’m not sure how to trigger the documentation popup. On a computer you’d Shift-Tab. How do we do this on mobile?
I didn’t see it mentioned on the README.

[holzschu]

On an iPhone, the toolbar above the keyboard has the keys: undo, redo, tab (arrow to the right with a vertical bar), shift-tab (arrow to the left with a vertical bar), cut, copy, paste, up, down, execute.

On an iPad, the order is slightly different and depends on whether there is an external keyboard and on whether the internal keyboard has a tab key or not. On my iPad, I see Escape, shift-tab, undo, redo, save, “+” (add cell) cut, copy, paste, up, down, execute.

If you don’t see a toolbar above the keyboard, there is an issue that should not happen. Please let me know.