Hopefully this is in the right spot, but I came across a post that tied together an external Python script inside of Dynamo that allowed you to update the Detail Number based on a user defined grid layout and by specifying some boundary on the title block. Malcs tools - Archigoodies for dreamers and lazy people. - Renumber Views on a sheet though it doesn’t seem to be updated/revised in a few years.
I took the suggested route of embedding the values (grid & boundary) inside of my titleblock file but i doesn’t seem to work. As I move the view around the sheet it seems like it’s picking the grid at random. Each grid is 1.5"x1.5". Not sure if it has something to do with the detail symbol placement on the lower left rather than the right.