Drag letters from this section to each of the sections in step 2. First drag the tiles to your rack of 7 tiles, and then drag existing tiles in the line you want to play. For example, if your letters are:
And the letters already existing in the line you want to play are:
Then drag the letters E, Q, U, S, T, A and N (in any order) to your tile rack, and drag the letters E, R and I into positions 4, 7 and 8 respectively for the line you want to play.
Please note: I am still working on a way to make this work better on smaller screens. The drag and drop functionality may be a bit complicated for small screens. The current idea is to allow letter input in text fields and allowing the visitor to choose how they want to use the tool, but I am still trying to work out the best way to make this feature work as easily as possible.