Allow for cursor movement within input boxes

[z2oh]

Currently, text can only be appended to the strings in the input boxes. Any changes earlier in the string must be made by backspacing to the point of desired change and then re-typed after change. There should be a way to change position within the input box without having to delete any text.

With this change, it becomes more important to show the location of the cursor within the input box. Displaying the cursor's location in the box may also be sufficient for #3.

What keys do we use to move around within the box? The left and right keys are hardcoded to move between boxes. Perhaps we require the user to press enter to select a box and then enter an input mode where left and right mean move within the box?

[ridho9]

Should you use tab? As it is natural to use tab to move between input box

[z2oh]

That's a good idea. It may be annoying though to have the option to only move one way. Maybe tab cycles forward between the input boxes (wrapping at the last box), and then Ctrl+left and Ctrl+right allow for more fine tuned movement between boxes?

[ridho9]

Tab should move forward, and shift+tab should move backward I think

[z2oh]

Ah shift+tab is good, I didn't think of that.