How to perform modifications on bins handled by succinct hash bin delegations?

Description of issue or feature request:
Currently, I am working to support succinct hash bin delegation as described in TAP 15 in Repository Editor for TUF.
Repository Editor for Tuf is a CLI tool that tests the usability of the public API calls provided by python-tuf while also providing a good hands-on visualization approach to learn about python-tuf and the TUF specification as a whole.

While working on it I came up with the following question:
how do we want to approach changes related to delegated bins represented by succinct_roles dictionary inside a targets role?

For example, what should we do when a user wants to do the following in a bin metadata file:

1. add/remove a new key
2. change threshold
3. bump expiry
4. add/remove a target
5. add/remove/edit delegation
6. bump version

I want to discuss it with everyone who is interested but will especially love to hear the opinions of the maintainers.

Start by reading TAP 15 and the Repository Editor for TUF context, then inspect how succinct_roles in a targets role represents bin metadata. Review the six proposed operations and the existing discussion to determine the desired behavior; the issue is complete only when maintainers agree on an approach.