Any change of a 'delete duplicate urls' in saved sessions option?

[nascent]

I have a few hundred 'previous sessions' from times I have been using chrome, needed to reboot or close chrome for an update or whatever, and not needed to go straight back to the windows i had open.  I would love to be able to just 'delete duplicate urls accross all saved sessions' to ensure each saved session only contains unique urls.

Similaraly a 'delete all empty saved sessions' would be great, as that would even apply for all the saved session which only contained local urls ( such as chrome sessions)