Does anyone have any experience adding computed fields to a managed schema? I'm using Solr in SolrCloud mode with 1 node. My `Sitecore 10.2` setup uses docker with a solr-init and solr image. I'm able to add a new field with the add-field command, but I don't see anything in the extended properties for a computed field. Here is the regular add-field command:
```
curl -X POST -H "Content-type:application/json" --data-binary "{\"add-field\":{\"name\":\"TEST\",\"type\":\"string\",\"required\":\"true\",\"stored\":true,\"indexed\":\"true\"}}" 
```
`http://localhost:8984/api/cores/sitecore_test_index_shard1_replica_n1/schema`

If it can't be done with the API is there another way? Or do I have to convert the managed schema back to classic schema.xml?

Thanks!