Define Label Postion in Arcade

[RobertBorchert]

There are lots of great formation options for labels using an Arcade expression.

Is it possible to define other attributes of a label in the same arcade expression

Halo,

Positions,

Preferred offset

Percentage of offset

etc..

There are tags to create a box and then color the box with an outline.  But I  am looing beyond that

[XanderBakker]

Hi Robert Borchert , 

As far as I have seen, all those things you mention do not have methods to create an Arcade expression and manipulate them. Maybe the best thing to do is to create an idea (ArcGIS Ideas ) and explain in a more detailed way what your exact use case is. 

Kory Kramer‌; do you know if it is on the roadmap to include more tags in the label definition to manipulate other properties as Robert is asking?

[KoryKramer]

Composite callouts are coming in ArcGIS Pro 2.6.  This may help to achieve what is being requested here.

Here is a sneak peek from the help (again, Pro 2.6, this is not available yet):

So complex labels can be set up like this: