Deal Smartlist - Need an email field

Hello, 

Like the title says. I would like to export a smart list under the Deal card but I am unable to add an email field to the options. This can be done under the contacts card. the workaround right now is to export multiple lists into a google sheet and then VLOOKUP corresponding contacts with the deal and update the sheet. 

Simple solution: Add an email field to the field options. 

** I don't have time to export the same information from different areas to get the same result.