Blueprint Dialogue System

How to make character input work when dialogue is displayed. Currently, my Char input stops working when Dialogue is displayed. I have set my preaction as
SetPassiveDialogue(true, 2)
Also my char input stops working after my dialogue ends
I also get this warning::
The widget UI_Dialogue_C_0 does not support focus. If this is a UserWidget, you should set bIsFocusable to true.

Is there a way to combine this with the Mission Component, having a dialogue option trigger the quest start? The mission component uses datatables too, what is the best way to combine them?

How do I combine this with a quest system like Mission Component? How do I make an option in dialogue activate the quest start?