I want to create editable list in Bonita Task form from default existing data of H2 database

I wanted to create editable list from bonita h2 database into bonita task form but unable to do so

Kindly help me with an example how to achieve edit previous data in h2 database embedded in Bonita in Bonita task form

Editable table Name Number

abc (existing data editable)

123 (existing data editable) xyz (existing data editable) (new data to be inserted) (new data to be inserted)