How can I replicate Scriptrunner Behaviours in Jira Cloud Projects

[Heather Ronnebeck]

I am working on a situation where the user has requested that I make fields mandatory based on other fields being marked with a specific value during the ticket creation phase. 

On Server, I would have used the Scriptrunner behaviours functionality to achieve this. I understand this isn't available in cloud. Is there a way to do something like this in Cloud with Scriptrunner?

[Roland Holban (Adaptavist)]

Scripted fields are currently not supported by our Configuration Exporter built-in scripts. 

The purpose of the config exporter is for use in creating script plugins, and we don't support loading scripted fields (as well as behaviours, workflow functions, etc.) from script plugins so export is also not supported.

To the best of my knowledge, the only things supported are REST Endpoints, script fragments, and script listeners.

[Zhiyong Liu]

We use Configuration Manager plugin for most of the JIRA config change, including the workflow post functions. The only missing component need manual config for us is the script fields.

Is there any REST API for adding script fields?

And it'd be nice if this can be supported by future release.