Is there a way to clear out all users from security groups in access control?

Summary:

We have made many modifications to the security groups that were initially set up in FCCS access control. We would like to clear all users out of the groups and then upload a clean file. Is there any way to do this or is it a manual effort?

Content (please ensure you mask any confidential information):

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

25.11.72

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