Yes,
wbleek wrote:
Do I understand correctly that I have to copy your formula into each cell to extract the following items?
Yes, in the example I entered the formula in A2, then "filled" it down the column.
Autofill cells in Numbers on Mac - Apple Support
That explanation is from the User Guide, which you can also access via Help > Numbers Help in your menu. If you are new to Numbers, or even if you aren't, having a look at the User Guide can help.
The formula in the screenshot is correct, but Badunit spotted a typo in the version included in the text of the post so you could copy-paste. It should be:
=REGEX.EXTRACT(TEXTJOIN("~",1,Table 1::$B:$G),"(TODO[^~]+)",ROW()−1,1)
SG