Second condition in a row filter in a slice

[Mantenimiento_S]

Hi you all !!!

I have a row filter condition in a slice, where I filter the data upon a user email:

OR( [EMAILCORREDOR]=USEREMAIL(), USEREMAIL()= "email@gmail.com")

My question is if it´s possible to add a second condition, It would be that filter the records with the condition of a field empty. It means that filter for the useremail and the records of a field that must be empty.

I don´t know how to add as a second condition.

Thanks in advance,

Javier