[Q] RCA RCT6773W22 Encryption Missing? topic

I have an RCA RCT6773W22 tablet running Android 4.4.2 and I would like to enable Android encryption on this device. However, despite it being a requirement of the Android 4.4 Compatibility Definition, the manufacturer seems to have removed the encryption option. I need to be able to secure this device. Is there any way to add the standard Android encryption back if the manufacturer has removed it?