How can i set date function returns now with custom date format in Transactions

In Transactions, Check Editor,

it makes me type hardcode date which comes with becoming outdated day by day.

Such as
-> Fill in field #depatureDate with 01/28/2021

is that possible way like functions..

ate("mm/dd/yy")   or 

date("01/28/2021", "mm/dd/yy")  or

now()

thanks..