>as far as I now, you cannot hide a page (unfortunately)
You are right; at least in VFP6, there is no ".Visible" property for the page. In this case, hiding the PageFrame would hide all contained objects.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)