The copy across functionality that we have at the module level should also be available as an option for the end users in New UX.
Recently, came across with a use case where users want to copy the same numbers across different rows and columns in a time dimensioned module and the best thing to suggest was to ask for copy- paste using Ctrl + C and Ctrl + V OR importing data using a CSV. However, for copy-paste, the user had to scroll until the very end of rows/ columns to paste the data.
If we have copy across functionality available at the UX end, it'll help save a lot of users time and will give an additional flexibility for this kind of use cases.