Как добавить разрыв страницы при определенном количестве строк? заранее благодарен

1. Create a top parent group.

2. In 'Group by' expression write =Int((RowNumber(nothing))/10) (change 10 to your desired number)

3. Click Ok. In table, delete the first column ('Columns only') if a column group is created for this newly created group.

4. In Group properties - enable Page Break - Between each instance of the group. Also Delete sort expression for this new group.