Printing summary internally

[shadrackkibet]

I also suggest the summary be done internally for our functions i.e duplicated_count_index rather than as a separate function. We just need to add a boolean for this. Perhaps this is difficult to do at the moment because some other functions used in this dialog are from other packages. I think we will need to write a wrapper for all these options in future so that we only have one function. Then we can print the summary internally.

Originally posted by @shadrackkibet in #6287 (comment)