QB Issue Resolution:

Click on the little arrows on the left of any account, to collapse or expand that account, when that account has Subaccount levels. Also, top right, Collpase/Expand button is here; you get to collapse all the way to One line for Asset, Liab and Equity, income and expense, with the arrows on the reports.

Resolution for Issue 'HOw can I get my P&L to show total only, by major account without showing sub accounts?' available: Yes (Solved).
Source: Intuit Community forum.

HOw can I get my P&L to show total only, by major account without showing sub accounts?: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.

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