ArcMap equivalency request. Keep the expression text box active when inserting Fields, Helpers, Values, and Operators interactively. Right now, when you click anything, it deactivates text entry, requiring the user to click back into the text field to continue building their expression. ArcMap keeps the expression field active.
Below is how the box appears after inserting a '/' - text input deactivated.
In ArcMap, the box stays active. This is desired.