Unable to copy pervisit and perbuild configuration between realms

[fluxie31]

This is more of a feature request I suppose, but I would like to have a default perbuild/pervisit setup when creating new realms with /os (and /realm//myrealm by extension). Perhaps /os map pervisit copy <number> or something similar would do the trick. I would help to add it myself but I haven't worked with C# in months and I am kinda rusted up on it (plus .NET Framework dev is hell on Linux).