Requesting Feedback on My Proposal for Multi-Column Rows Drag and Drop

Hi @rnunez,
I'm Vivek Kumar. I've put together a proposal for multi-column rows drag-n-drop and submitted it on the Google Summer of Code website. I'd love to hear your thoughts on my plan and any ideas for making it better.

Dear @rnunez , I know you're incredibly busy, but I wanted to check if there's any chance you might have time to review my proposal before the April 2nd deadline. Any feedback you can provide would be so helpful. my user profile is : VIVEK285090

the deadline is for submission, we'll start the review process after that date