This has not been working for me as well for quite some time.  It's the #1 frustration I have with Quickbooks Online.  This should be a basic feature.  When I drill down into Transactions from a P&L report, the report is too wide for me to see the entire report of the screen.  Also, I try to customize and save to how I want it to look, but it always reverts back to the default method whenever I drill down from a P&L or Balance Sheet Report.  I have tried clearing the cache, going incognito etc. and nothing works.  I really need to clear this up.  I want to be able to recommend QBO online to my current company that uses Desktop and am afraid to do so solely on this. It's that important for me and my team.