You should use $System.Event to wake-up queue handlers, not as a queue itself.

You can use Objectscript pattern matching:
Set String="a=b"
Write String?.e1P.e => 1
The case isn't important, just to highlight the 1P(unctuation)

I fully agree with Julius.
Any class that exceeds 100 properties is dead wrong.
We're not talking tables (relational) (and even then it's wrong) but OO design, which doesn't seem to be much in fashion these days.
Redesign your solution
 

Dramatic entrance ;-)
Looks awesome, definitely will have a look.

Maybe you can use a generator method somewhere in your code to create the WebApp, something like:

ClassMethod CreateApplication() As %Status [ CodeMode = objectgenerator ]
{
Set $ZTrap="Error"
New $Namespace
Write !,"Creating XXX API",!
Set URL="/xxx"
Set $Namespace="%SYS"
If ##class(Security.Applications).Exists(URL) {
Return $$$OK
}
Set Props("Name")=URL
Set Props("NameSpace")="%SYS"
Set Props("Description")="XXX API endpoint"
Set Props("AutheEnabled")=64 ; unauthenticated
Set Props("DispatchClass")="API.Handler.Class"
Set Props("Type")=2 ; CSP App
Set Props("MatchRoles")=":%All"
Set sc=##class(Security.Applications).Create(URL,.Props)
Return sc
Error
Set $ZTrap=""
Return $$$ERROR($$$GeneralError,"ErrorTrap: "_$ZError)
}

For what it is worth: I don't agree.
Studio is a Objectscript dedicated IDE (Editor), rather clean and unobtrusive.
It could be enhanced quite simple.
The only problem is Windows only (which is still 57.37% of all desktops)
 

I've trained about a dozen junior to senior developers in InterSystems (and predecessors) technology.
ObjectScript is the least you should worry about. Any developer who can't grasp that isn't worth hiring.
It's the IRIS ecosystem that is completely different from 'traditional' development. Globals, Namespaces, (Remote) Databases, Mirrors, Productions, Jobs. All concepts that are not found outside the InterSystems (MUMPS) realm.
If people get their head around that, they either love it or hate it.

> being rather an explorer than an administrator

I'd like to add: I rather have an artist then a graduated physicist
 

Time-Aware Modeling, enhancements of Foreign Tables,  Ready-Only Federated Tables.

Is there any documentation on these features?