Help with the new User input syntax

[RRC]

Hello all!

I have a question/issue with the GA input update. I am not able to find any good resources that explain on how we can pass user input through a behavior. Before with the old syntax, we were able to define the action with the "Input("Var","") and then reference that variable in the other behavior.  However I have not seen any documentation that explains how we do this with the new syntax. The only thing I can find is how to perform the action on the behavior it currently resides in, and not how to pass user input to that behavior from another. For example:

I have a table called Timesheet and a table called Time. For each Timesheet, there are many Times. My goal is to make an action where when I am looking at a Timesheet I have a primary action to add a time to the timesheet. Here is a what I can do now, but I would prefer to go about learning how to do this with the new input syntax rather than having to "Add" a time to the related times of the timesheet I am currently on. 

1)
 
2)
 
3)

My goal is to have a primary action that shows up on the timesheet that goes and adds a new time from the user input fields using the new inputs. 

This is how I assuemed we are to do it, but I have no way of passing the inputs to talk to each other. Is this not possible? 
Timesheet Action:

Time Action:


Here are my databases:
Time:

Timesheet Part1:

part 2:

Part 3:

Thanks for your help!