If by "top-ish" command, you mean the output of a heading and then a set of elements below, I wrote a module for that which I haven't published yet. There are also other terminal toolkits like Tickit.

Before I paste the wall-of-text that is my module, can you explain a bit more what you want?

Most of my module reduces to:

has 'term_scroll_up' => (
    is => 'lazy',
    default => sub { $_[0]->terminfo->Tputs('UP') },
);

has 'term_clear_eol' => (
    is => 'lazy',
    default => sub { $_[0]->terminfo->Tputs('ce') },
);
[download]

and the idea is to output the list, and then scroll the cursor back up to where we started printing that list.