When you are on page X of a document and use the Insert Pages command, the window should auto-fill page X into the "Page: __ of XX" radio button.
Currently, the option presented seems to be inconsistent, but it never suggests the page I am looking at, which seems like a really good guess as to where the user might want to insert pages. Even if it did not automatically select the Page option, having the current page number filled in would be very useful.