Anyone know of any good examples of backend forms? I'm basically trying to do simple crud work with a form (not a list) per record and having several issues that a few simple examples might clear up. Mainly the automatic crud functions keep creating new records instead of using the id of the current record and updating that. It's something simple I'm sure but ....

Go to /plugins/almost_any_author/almost_any_plugin/models/foo/fields.yaml. Also see the forms documentation.

A good example to check is always the blog plugin. /plugins/rainlab/blog/models/post/fields.yaml.

do u have an example how to create backend form