Yes , it would need to be deselected when not needed, as it would look like a Xmas tree, which is what I think would show which goes with which.
Or another way of showing the pairs, is to be able to select a way to have each pair a greater indent from the left margin ( and the text within them )
I sometimes do this anyway, so that I can see each section, you would have to be able to return to normal .....
void loop ()
{
if ( cost > x )
{ serialPrint ( cost ); if ( cost > 2x )
{ digitalWrite ( ledPin, HIGH );
}
}
}