Cells within a collapsed header might still run or have errors. I often run 'all the cells above' and some of them are in collapsed headers, because they are imports or helper functions.
It would help if the collapsed header had a small status bar to indicate whether a cell is running or has an error in the collapsed header. For example:
○ ○ ○ ● ○ ○
in a corner to indicate the forth code cell is running. Similarly, some of the circles may be red to indicate errors.
Cells within a collapsed header might still run or have errors. I often run 'all the cells above' and some of them are in collapsed headers, because they are imports or helper functions.
It would help if the collapsed header had a small status bar to indicate whether a cell is running or has an error in the collapsed header. For example:
○ ○ ○ ● ○ ○
in a corner to indicate the forth code cell is running. Similarly, some of the circles may be red to indicate errors.