Onboarding(whitelisting) tokens to enable these unique Bancor features depends on the Bancor DAO approval.
First, a discussion should be created to gauge interest by the community and ultimately, vBNT depositors who vote.
You can start a discussion in our Governance forum.
Second, if there is interest, please make sure your token can be technically listed, by answering this questionnaire. On-chain vote via Snapshot can be sent after there's a written proposal in the governance forum.
Third, once the proposal has passed, your token can be listed on Bancor for trading and staking.