Creating a 2-2-3 Schedule in Power Query

There are probably a few ways to do this, but this uses the ribbon almost exclusively without generating lists.

Here is what I did:

1. Created a table of the letters, all 14.
2. Added an index starting at 0 to it. So they are numbered 0-13.
3. From my dates, starting with Monday, created another list going out several month.
4. Added an index starting at 0
5. Took the modulus of the index divided by 14. This returned a repeating sequence of 0-13 through infinity.
6. Merged this with the table of my letters in steps 1/2 above.

My file is here if you want to take a look at it.