It is clear from another part of the Sch E filing instructions that the IRS wants each property listed one by one [emphasis added]:

Complete lines 1a, 1b, and 2 for each rental real estate property. For royalty property, enter code “6” on line 1b and leave lines 1a and 2 blank for that property.

If you have more than three rental real estate or royalty properties, complete and attach as many Schedules E as you need to list them.