Cowfile V8 allows 127 total characters for the overall event definition, and Cowfile V9 or greater allows 1024 total characters.
The system calculates in total how many characters have already been added to the overall event definition and then limits the remarks accordingly. The limit is for the total remark definitions between the pick list and custom remark field (if one is allowed).
Each individual remark has a character limit, which is displayed at the end of the Add Remark field. Each remark you add to your pick list uses characters from the total limit.
For example, let's say the system determines that you have Cowfile V8 with a total limit of 127 characters, and you've added 7 pick list remarks that are 16 characters long. At this point, you have used 112 of your total 127 characters. You now have 15 characters left. You can enter one more pick list remark that contains up to 15 characters, or you can enter several shorter remarks, as long as the remaining items do not exceed 15 total characters (for example, you could create three 5-character remarks, or five 3-character remarks, or fifteen 1-character remarks, etc.).
Remember that custom remark characters count toward this limit, so if you want your users to be able to enter their own custom remark, be sure not to use all the characters up with your pick list items.