CM Unreconciled tab,business needs additional comment column in each line on both side to reconcile

Summary:

In cash management manual reconciliation task,under Unreconciled tab we have system transaction section and bank statement lines section on that client wants to add a new column called additional comments, we can add column but that can't be edit in unreconciled screen later they wants to add their comments and save. please let us know the feasibility on this

Another requirement is Cash management Manual reconciliation task,under reconciled tab if we checked the reconciled checkbox and unreconcile those group it will automatically moved all tansactions to unreconciled tab for an example in a group if we have 100 transactions those 100 transactions moved from reconciled to unreconciled tab those 100 transaction has to be in ticked in checkbox ,I'm not sure whether Its achievable its seems to new design please advise feasibility on these as well whether its achievable or not