Hi knievel124,

It's nice to see you here in the Community.

Currently, you can only run the Balance Sheet and Profit and Loss report by class. To get started, turn on the class tracking and set up your class list. Let me guide you through the steps.

To turn on the feature:

1. Click the Gear icon, then select Account and Settings
2. Select Advanced. Then click Edit in the Categories section.
3. Select Track classes.
   
   
    
4. Select Warn me when a transaction isn’t assigned a class. This is optional, but it's good to turn on so when you look at reports, you know everything got classified.
5. Select the Assign classes drop-down, then select One to entire transaction or One to each row in transaction.
6. Click Save, then Done.

Then, set up your class list so you can track your transactions. Once done, you can run the Balance Sheet or Profit and Loss by Class. 

Here's how:

1. Go to the Reports tab on the left pane.
2. Type the Profit and Loss by Class on the search field.
3. Click Customize, select Filter.
4. Select the correct date under Report period.
5. Tick the Class box.
6. Click Run report.

I have attached screenshots for detailed steps. Although this is specific to only one report but customizing is mostly like the same.

I'll also pass this along to our product team to let them know of your business needs.

To know more about customizing your report, you can click this link for visual steps and more information: Customize Reports.

As always, feel free to let me know if you have other questions about QuickBooks Online. I'd be happy to help.