Need to add custom field in Create financial Baseline Modal in UI builder

[VinothiniA]

My requirement is to add custom dropdown field in 'Create financial baseline' popup which show up when we click 'Create Baseline' button in Financial Project Workspace .

I have added the dropdown field using UI builder component and able to view the field in modal popup but not able to fetch the user choice of dropdown value and store it in planned_task_baseline table . Even though created client state parameter, event tagging etc.

Please can anyone help on the client script code and further steps after component creation.

And also not able to add this custom field in Personalizes column.

Thanks,