MD1000 - adding disks to array

Hi hoping for some help.

PowerEdge 850 + Perc5/e

I have an MD1000 in splitt configuration.  On the second half we have 4x 500GB disks in RAID-10 for approx 1GB.  I need to add disks to increase the existing array to approx 1.5GB,

I have 2x500GB disk which have already added to the MD1000.  The problem I have is I cant find a way to add these disks to the existing array (I need to keep the current data intact.

I've had some previous advice:

I would suggest the following steps:

Preparation stage:
- make a backup of your data (shouldn't need to recover anything, but when making changes to your setup this is even more important than normal)
- update all drivers, firmwares and the bios on the server, perc and MD1000
- update OpenManage Server Administrator to the latest version for your server (probably 5.5.x)
- make another backup (now that everything has been updated

Actual process:
- insert the 2 extra drives
- go into the Server Administrator
- go to storage
- select the PERC5E and verify the 2 new physical drives are recognized
- go to the virtual drives
- on the dropdown behind the virtual drive in question select the reconfigure option
- select to add the 2 new drives and make sure to stay with raid 10
- let this reconfigure (will take several hours to a day or more)
- once finished, follow this MS KB article to extend the partition.

The problem is I dont see the reconfigure option.  For the new disks, I can only create RAID-0 or RAID-1.  Ive updated firmware, drivers etc