The style you show is not possible - multiple ID's on one line.
ArchiCAD can group multiple items if every field scheduled exactly matches. So, you could omit the ID field and display a Quantity field to get a count showing 2 of the first window and 1 of the second. But, the fact that the first two windows have different ID's forces them into separate lines if the ID field is scheduled.
Karl
AC 28 USA and earlier • macOS Sequoia 15.3, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB
One of the forum moderators