Issue Summary

We have a forge custom multilevel cascading select field that's supported in Server, but we can’t have such type
show in Jira Cloud, it is just Object type like below:

On Jira Server, Jira recognizes the multilevel cascading select type:

In workflow in the Cloud, we can’t view the field in the field dropdown list as well as some third-party add-ons (for example Rich filter). While in Jira Server, these Multi-level cascading select fields are present in workflow or rich filter.

This custom field is searchable in JQL:

Since this is an Atlassian Forge custom field, we should support it on Cloud.