User753101303 posted
Ok this is the config file editor but I'm still confused about what you mean by "adding new folders". It should show all config files found under a site or accross all sites if used at the server level (but could be longer to scan all sites) and it seems
this search box alllows to find a particular section in all those files. You don't mean you are trying to write an IIS console plugin ???
I don't think you can use that to edit a config file which is not under any web site if this is what you mean. https://forums.iis.net/ could be better for this question and explain there what is the final goal
you are trying to reach.