Add Hot Spare to existing RAID-10

I have a Dell R630 (10-bay) and set it up with RAID-10 using 4 drives and 1 hot spare.  I've added 5 more drives and would like to set them as hot spares, but haven't found a way to do this.  I have idrac8 and tried using this, but it only allows global-hot spare.  When I set one of the drives to a global hot spare I get this error message:

Event Message: The global hot-spare drive Disk 5 in Backplane 1 of Integrated RAID Controller 1 does not cover all the virtual drives (VDs) available on the controller.Date/Time: Sat, 08 Feb 2025 10:15:50 -0500Severity: WarningDetailed Description: The global hot-spare identified in the message either does not meet bus protocol, media type, or does not have sufficient storage space to cover all the virtual drives available on the controller.Recommended Action: Assign a drive with matching bus protocol, media type, and sufficient storage space.Message ID: PDR50

I've tried to reboot into RAID BIOS (Ctrl-R) and this didn't have any options to add dedicated hot spares.

This is a screen shot: