Impact factor - make it easier to sort by impact factor

Please make it easier to designate impact factor of journals and sort by impact factor.

This likely requires a new column, but would be very useful in determining which references to read first and to cite.

The star system is great, but the impact factor is more established.

This wouldn’t be a simple thing to add since impact factor changes annually. All other fields in an endnote reference are static so adding impact factor would require the developers to write some sort of method to refresh just the impact factor field once a year.