This free guide is pretty great if you are asking for Postman help? https://community.getpostman.com/t/the-postman-cheatsheet-quick-reference-guide-2019/1054
My colleague @Sourabh.Sethi created a pretty great video on this subject yesterday which may also help: https://community.intersystems.com/post/new-coding-talk-informative-and-fast-web-api-objectscript-and-ensemblehealthshare
Hello. For a given production item name you can enable: Write ##class(Ens.Director).EnableConfigItem(Item.Name,1,0)
or disable: Write ##class(Ens.Director).EnableConfigItem(Item.Name,0,0)
Does that answer you question, Jimmy?
I believe you may be missing a counter variable which you could test by simply putting a 1 in the property shown in your first screenshot i.e.
target.{PID.PatientName(1).FamilyName}
Also, for ease of reading I generally convert the field names to the corresponding location so if desired the above could be
target.{PID.5(1).1}
I hope this helps.