This morning, we have launched an improved way for managing roles within organizations and projects. In particular, these enhancements allow for the creation of "contributor" and "financial" users, with restricted permissions.
financial users can access billing information and invoices - this role is designed to fit the requirements of financial departments, which usually do not require access to all the project functionnality.
contributor users can create new rules or modify existing ones, but they can not publish rules, which means that they do not have direct access to the redirection rules that are executed on your public website. This is especially useful to allow an external SEO consulting company to contribute new redirect rules for your website, while having a way to control upstream what is going to be changed on your website.
Our documentation about permissions has been updated to reflect these changes.