crossword.jpg

I am trying to create an interactive crossword in Excel. It's a 12x12 crossword with a couple of black cells. What I'd like to be able to do is:

- Whenever I type one character, it automatically switches to the next cell (whenever it reaches the end of the row -> switch row)
- Whenever the activecell has a black background, switch to the next cell
- If I press the spacebar (or any other key), switch the direction (meaning I'm typing in columns now instead of rows)
- I would also like to have an indicator (an arrow or something) to show me the active cell and direction
- If I press tab (I assume it won't be doable, can be any other key), move to the next word (right after the next black cell)

Can anybody help me?

Thank you so much!