Many thanks to rapid response. Last night when I went deeper into this program I have found several ways to solve this problem.
We are such beginners.
This described above does not work, so I was already working. I have the interval from first to sixth This indicates the school lessons. I should have found a teacher to the whole week not a first lesson. This is an example that I set up. And it did not work, again to generate a FET that has a teacher and 1 hour.
Although I found the one table where you just click on the box set "x" and so solve my problem, maybe it would be better if I understood this more sophisticated manner.

This described above does not work, so I was already working. I have the interval from first to sixth This indicates the school lessons. I should have found a teacher to the whole week not a first lesson. This is an example that I set up. And it did not work, again to generate a FET that has a teacher and 1 hour.
Although I found the one table where you just click on the box set "x" and so solve my problem, maybe it would be better if I understood this more sophisticated manner.