Hey @shinde.atul002
Yeah this is not too straighforward. Frankly waiting a second or two is not the worst and you should consider the cost / benefit of going down this rabbit hole. You could just work to improve the UX at this step by including a loading animation or something else to tell the user the item is being created. But if you must have instant results I’d suggest trying out some of the ideas in this thread:
Also, this video takes you through an approach to add rows to a repeating group without creating a new thing. It will take a bit of doing to set it up but I think it can work in your case. However, once the user has put in the new lines, you will need a workflow to create the new database things , for which you would need to be able to access that newly created data from outside of the RG. Something like BDK’s ReapeatingGroup Tools may be required.
Rob