iOS UI Automation: How to capture dynamically generated row

I am facing issue for capturing of dynamically generated rows.
I want to select row from table view which gets generated dynamically.
When i try to access that cell with following code it gives me error like “Cell not found”
[app.tables[@”Presets List”].cells[@”Express”] tap];
[app.tables[@”Presets List”].cells.staticTexts[@”Express”] tap];

Could you please help in the same?