First execute an input command and only then proceed with displaying the next record of the table

[leifoet]

A table is run through with a 'do while'.
Elements of that table are subject to changes that are always entered via an input.

Method
do while..

display element 1 => input (possible changes)
only then display element 2 => input (possible changes)
only then display element 3 => input (possible changes)
...
loop

I'm looking for the code to pause and restart a 'do while' every time after each displayed element/record until the input command of the element in question has been executed.
Is that possible ?
Thanks for tips.