How to delete or edit an existing secured attribute in Picketbox Vault ?

Issue

• We would like to know if there is any way to delete or change a password in Picketbox Vault?
• I would also like to open an enhancement to manage the contents of the vault (i.e. add/view/delete values inside the vault).
• I need to know how can I add a new value to existing vault?
• Remove value from vault. I'd like how to manage the Vault file, I mean, I'd like to remove elements included, etc.