Two marks, one target

A chart hides blocks that are too small to draw on it. One step down finds them, and one rule keeps the list from doubling.

Scale down once, to check

Drop one chart below the one you set the targets on and look at the space between them.

This is a check rather than a search. You are asking whether the empty stretch between two targets is genuinely empty, and you ask it once.

One chart down, one look, then back up.

What the gold long hides

Between the 2,431 target and the 2,449 high, the 1 hour chart shows nothing at all.