Need a user interface to create/update custom KV pairs

Hello all,

We have a custom plugin was written in 2016 that created a UI for custom KV pair creation and updating.

These KV\Pairs would be queried via REST API by another tool.

After upgrading to the latest version of Jira that custom plugin no longer works.

Does anyone know of a marketplace plugin that has a UI where custom KV pairs can be created or updated?

Version JiraDC 9.12