selecting screen split - binder does not update - why?

Clicking a split does not update the binder selection.

What is the reasoning for this not happening?

Hi FredBob,

Your question was asked and answered at length over in this post:

https://forum.literatureandlatte.com/t/loss-of-focus-in-the-binder-when-spliting-documents/36328/6

Hopefully that helps you understand the design choice.
Jim

(I am a user and not affiliated with L&L)