On one sheet I have a long list of items which I need my users to scroll down
and, when needed, fill in a value next to the appropriate item in the list.

Most of the list items will not need anything inputting against them.

Then on a different sheet I need a nice tidy summary list which only shows
those list items which have an input against them.

The bit I cant do is getting these few items to display (on a separate
sheet) in a nice neat all together, contiguous way - ie with no gaps

any ideas?