I would like to generate a customised cash in flow report, for 1 specific bank account

Generating a customised cash-in flow report for a specific bank account is easy in QuickBooks Online (QBO), and I'm here to show you how, @useralex-durand.

Financial and/or transaction reports in QuickBooks give you tons of great info about your business. When you customised one, you're able to focus on the details that matter the most to you.

That being said, I'd recommend generating the Transaction Detail by Account report. Then, customise it to show your cash-in flow for a specific bank account. To do this, here's how:

1. Go to the Reports menu.
2. From the For my accountant section, select Transaction Detail by Account.
3. Select Customise.
4. Set the appropriate date in the Report period field.
5. In the Filter section, select Distribution Account or Account and then choose the appropriate bank account
6. Select Run report.        

I've attached a screenshot below that shows the last three steps.

To learn more on how you can get the most of your financial reports, you can check out this article: Customise reports in QuickBooks Online.

Then, if you wish to save the report's current customization settings, you can memorise them. This way, you won't have to go through the same process again. You can refer to this article to know more about this process: Memorise reports in QuickBooks Online.

Also, you can use different reports and projections to get a clear look at your current and future businesses finances in QBO. To track the amount of money moving in and out of your business and bank account, I encourage you to check out this article: Track your cash flow in QuickBooks Online.

Don't hesitate to leave a comment below if there's anything else you need and I'll be glad to help. Take care and have a great day ahead.