IRA Beneficiaries are very different from joint owners, misc. owners and beneficiaries on other types of savings, checking, and non-IRA certificate accounts.  That's because an IRA beneficiary is named for each IRA Plan, not to an individual sub-account.  All sub-accounts (savings and certificates) under an IRA plan type (T for traditional, R for Roth, etc.) are considered to be “the IRA” for the purposes of beneficiaries. So we can’t list beneficiaries by sub-account. Non-IRA certificate beneficiaries are for one sub-account at a time. Grandma can have 5 regular CDs, each with a different grandchild as beneficiary.

The Secondary Names screen which you access from Inquiry and Phone is primarly intended to show joint owners of a member's non-IRA accounts.  Because non-IRA beneficiaries happen to be stored in the same file as joint owners, those are also displayed on this screen. 

To maintain IRA beneficiaries, use Tool # 897 "Update IRA Beneficiary Information."