Removing Physical Disk from Logical Drive

Hi,

We have a HP ProLiant G380p Gen8 with a Smart Array P420i.

We have a RAID5 array with 4 physical disks setup as 1 logical drive.

I recently added a new disk, which is all working fine.  However I need to remove this physical disk out of the logical drive as I want to do something else with it.

Can I remove the physical disk out of the logical drive and the array?  I can see any option to do this.

I've been using the Smart Array Administrator GUI for this.

Thanks