To use the flags create/edit your sandbox OOB and input the new references from the csv file into the flag column.
Flags example

PS. first mod so I hope i got it all right
Thanks for the tip. I have updated the zip file with an OOB just for viewing the flags called OOB_SB_CSAFlagsexample, pick Lee and all four flags shall be showing... Suggestion, make a complete mod with a modified OOB renamed distinctly. This would be a quick way for folks to check out your flags and then modify other oobs ..
Yea goes stright into mods folder. This is a mod for modders so it wont have any effect on the core game if enabled, but people can use the new flags in sandbox OOBs they want to create.Hi, this flag folder goes into mods right?