1. I have a custom form where the needs are changing very frequently.

​- For example, today they want to add 5 new fields to the form.

​- So instead of adding them in the python model definition every time they want to add a field, I want them to add those fields themselves using the model management view from builtin settings, where I filtered the models to those that are introduced in my module.

2. I have a xml view file that defines the form for this model, but it cannot reflect the latest added custom fields. I know all fields are displayed in the default view, but there are some fields that I want to hide and I want to organize the form.

Question: How can I add the new custom fields to the place that I want on the form?