How can we request someone to be our career ambassador

Summary:

We have to showcase Dynamic skills for the use of 'Individual Development Plan'. Our customer's need is to have Resources for employees who can help them achieve the skill they are looking for.
We have enable Career ambassador for this, and via connections we can sign up as a career ambassador. But then they are not visible in Resources for employees across the organization, or how can emp request someone to be their mentor(here, career ambassador).

Also, how can we define a timeline for the same like by when should an employee be achieving that skill.

Version (include the version you are using, if applicable): 25A