Need to be able to add items to a selection list

[daden]

We have a use-case in which the end-user needs to be able to find items in the selection list or add a new item if it doesn't already exist. By creating a wrapper directive, I can now add items to the selection list but am wondering if there is any work-in-progress to add this as a built-in feature as the wrapper directive approach is less than ideal.

Aside: We also have a need for validation which I see is on the roadmap. Is there any sense of when this might be available?

[dimirc]

Looks related to #260

[ghost]

+1

[dimirc]

Tagging feature is already implemented