Filter to use Per User email and "contains" operator

[George_B]

@Jeff_Hager I just added this feature request based on these ideas.

Create a global variable for the logged in user

The email of a logged in user is available for Forms. Could you also make it available while creating a filter. Something like being able to type {{user.email}} in the “Enter value” box of the Filter dialog would solve a lot of peoples requests and be a great additional feature. Maybe other globals like, Date (not date and time as that changes every millisecond), or Geolocation. I can think of use cases for the Date are pretty straight forward but for Geolocation the only thing I can think w…