i have got a question about the presentation of customer data.

what i do:

- report settings, summary

- customer viewers

- add criteria : Added user equals to Zoho.loginuser

This shows the customer their own data after that is beind submitted,

but...

How can i show the customer data before it's submitted (based on their e-mail adres)

something like this :   Email_adres equals to Zoho.loginEmail

how can i fix this?