No, you can use the "Generate Multiple" option. There are a couple of ways to do this.
The first way is to make multiple lesson plans: one for labs, one for textbook, etc. and then auto-assign them to the appropriate days of the week. The advantage of this method is that it gives you more flexibility - if you want to spend more time on a lab, skip something, or introduce another resource for a certain topic, it's easy enough to move things around.
The second way is to make a nested all-in-one lesson plan. I'm not sure what you have planned for the rest of the week in Chemistry, but let's say you have lab on Monday, textbook on Tuesday, review on Wednesday and a quiz on Thursday. Here's how to do it:
- First generate a list of assignments for the Chemistry labs, using a starting sequence number of 1 and a sequence interval of 4.
- Then generate a list of assignments for the textbook, using a starting sequence number of 2 and a sequence interval of 4.
- Then generate a list of assignments for review days, using a starting sequence number of 3 and a sequence interval of 4.
- Finally, generate a list of assignments for quizzes, using a starting sequence number of 4 and a sequence interval of 4.
When you are done, your lesson plan will look something like this:
1 Chem Lab 1
2 Chem Ch. 1
3 Chem Review Ch. 1
4 Chem Quiz 1
5 Chem Lab 2
6 Chem Ch. 2
Then you can auto-assign this using the weekly option and selecting Mon through Thu as possible school days.
This method might be best if you are following someone else's curriculum and plan to follow it exactly.
Hope this helps - if you want more examples, there is a section on "Advanced Lesson Planning" in our Help Manual, which you can download here: http://www.ollyhomeschool.com/getting-started/pdf-olly-help-manual/