Pinging @Alexander Koblov

Isn't it more like anonymous functions?

Currently not possible. Check  @Gilberto Junior solution - it seems the  closest to what you want.

Here's a series of articles on how to work with GitLab.

Like this?

 write $case(condition,
             1:"hello " _
               "world",
             2:"name",
             :"!")

Hello world is a multiline expression.

Post Teste method?

I'd go with if, but you can also resolve case expression beforehand:

set condition = .... several lines of logic...
write $case(condition, ...)

And condition then can be separaten into several different lines.

I'm against method chaining in general and several functions on one line/step in particular.

Each line should contain one small operation.

Maybe

Property TS As List Of %TimeStamp;

?

UPD. Nevermind, got it.

You can use Security.Services class, it can modify services programmaticaly.

SoapAction method keyword maybe?

I'd try to rework this method to avoid object access to speed it up. GetStored method can help. Article about it.

This feels more like a DevOps process, where coding is more acceptable. Anyway, maybe you need to ask a separate question on configuration synchronization best practices?

1. Import task has these two qualifiers:

displayerror
displaylog

They do not affect import.

2. No. If you check exported xml, you can see that exported tasks do not contain IDs, so, on import they could not overwrite existing tasks. Not sure about how correlate/next work on ID fields btw.

Exporting and importing what is currently present is the best way. 

It's the easiest way. The best way would be to write and document  a script (ObjectScript code) that transforms base instance into what they need. This way changes are documented and adding another server is easy.

1. Execute this to get a list of available flags and qualifiers:

Do $System.OBJ.ShowQualifiers()
Do $System.OBJ.ShowFlags()

Qualifiers are preferable to use.

2. I'd rather go with programmatic access. Write code that's:

• Opens system task object
• Modifies and saves it

What system task did you modify?

Please post the code you use to generate xml.

Do you want to pull all the rows each time?

If so,  just clear “key Field Name”  setting and BS would process all rows every time it's run.

Compilation is usually multi-process, I'd try single-process compilation and see how it works:

$SYSTEM.OBJ.Compile(.classes, "/multicompile=0")

Multicompile qualifier:

           Name: /multicompile
    Description: Enable use of work queue manager (optionally specify the number of workers if value >1)
           Type: string

UPD. Who throws a RESJOB? Do you want to kill compile process from external process (that was my idea)? Or do you want to terminate abnormally?  If it's the second you need to check errolog from Compile method and terminate the process explicitly:

do $system.Process.Terminate(, 1)

Also I wrote a series of articles on managing Continuous Delivery process. Check it out.

If Is it only Cache SQL, where did you learn about it?

From documentation. Here's a link to SQL reference.