I am editing a pagemaker file that has previously

Can you elaborate a bit more what exactly is required ? What I undersand is that you need to remove a "one line space" from any page but do not want the matter from the next page to come in the current page.

Well if that is the case what you can do is remove the one line space or maybe more lines from page 1 (for example). If the matter from page 2 comes to page one, click on arrow tool and select the text matter on page one to select it. Click on the "+" sign at the bottom of selection and drag above the unwanted text.

I hope I have made myself clear.