Limiting Text Entry Field to one character

Hi there,

I'm working on a few possible activities revolving around the text entry / numeric entry fields.

For instance, I'd like to set up a crossword puzzle but want to use individual letters and limit each Text Field to one character. 

Aside from doing this in Javascript, I saw you can limit the character count if you set up a Survey Question. The only issue I'm seeing with this is you can only have 1 entry field on your slide when you do this.

Does anyone have a solution to this or an example they would be willing to share?

Thanks!

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