Prevent only some custom fields from being changed

Summary:

Prevent only some custom fields from being changed

Content (please ensure you mask any confidential information):

We use some important information in the custom fields of the order, this information in some scenarios may need to be updated manually, but we would like to select only the fields that can be updated.
For example: The information in cust_field_1 can be updated, but the information in cust_number_1 cannot be updated.
Is there any way to control this?

Version (include the version you are using, if applicable):

25B

Code Snippet (add any code snippets that support your topic, if applicable):