Daniel, that depends on the remote. "Macro" refers to a sequence of "button presses" recorded and assignded to a single button. Inthe case of the "squeeze"/"unsqueeze" macro it would be going into the menu, scrolling to the right menu item and clicking "up" or "down" arrow. Since Sony's menu...
Don't know whether they changed it in HS500, my older XBR400 only auto-squeezes 480I, not 480P, so I have to do it manually for my progressive-scan DVD player.