Theoretically yes.  According the filing instructions, you will still need to attach a schedule showing those separate properties in the exact same format as Sch E:

You can attach your own schedule(s) to report income or loss from any of these sources. Use the same format as on Schedule E.

In the end, that may actually create more work because of how depreciation is linked to each individual property, PAL allocation, etc., unless your client has a sizeable portfolio that makes working offline on a spreadsheet worthwhile.