Email "to" and "from" value to be dynamic?

I need to add an action link or button to a form or table, that captures the information in certain fields of a record and sends an email to an email address 
I KNOW: Action links basics as described in this article
I'M MISSING: I need the "to:" and "from:" fields in the email that goes out (sender and recipient) to be dynamic. I want to capture the logged-in user's email address as the "from:" value and choose from a drop down list of contacts (from my contacts table) to select the "to:" value.
I'm grateful for any help.

Hello Ronaldo,


You can not put value in "From" field dynamically. But you can put To , CC , BCC and Replay to Dynamically using action link in knack.



Sunny Singla