Hi jvivek,
Thank you for the purchase.

I really need development of front end user input. a better way to input data faster instead of opening the input dialog every single time for one input.

You can enable Inline editing and adding data will be more faster. You don't need to open editor every time. Please take a look at this documentation how to enable it - https://wpdatatables.com/documentation/front-end-editing/inline-editing/

also it would be nice to add user/password authen

Can you describe this in more details because I didn't understand it quite well.