Indexing often end up looking like this:

Smith, John 37, 38, 39.

It's tedious to have to make the first entry be for the next three pages and delete the other two. Why not have a menu option to "Merge consecutive pages." It could be run near the end of the indexing process when the page breaks are unlikely to change.

Even better would be an option to for consecutive page entries to create a new entry that makes the first the start of the indexing and the last the end of it. That'd keep the range right even when the page breaks change.