If you exit out of this thread and go on the main page, type 504 plan, 504 accommodations, etc....you will get a list of threads to visit.
There are also some key school threads bookmarked on the first page of the schools section, highlighted in a colored band.
At 6 you have many concerns to consider. Kids are still sharing manipulatives, kids are still putting their hands in their mouths (think, wiggling lose teeth), snack is a big deal, lunch is also typically followed by common time with kids from multiple classrooms, how segregated do you want your daughter, do you want her at an allergy table for lunch, etc.... How do you feel about class parties and celebrations? Is your daughter contact sensitive? How do you want her meds handled And where do you want them stored?
Our kids all have different needs based on their readiness.
The plan itself can include anything you and the school administration want. Sometimes this relationship is smooth and productive and for some it can be very advisarial.
Hoping your team will be positive.
Key points, document everything, date everything, take someone else to the meeting with you, you may find having a neutral party helpful, esp if you are feeling emotional.
Spend a bit of time in our threads and then post for help with specifics. There is some great and informative history here.