Job Search Filters in Internal Career Site

Summary

How can we have custom fields as filters for employees looking for jobs posted internally?

Content

Hi

We want to have some custom fields as search filters for employees who uses the internal career site (Me-->Current Jobs). I see filters based on 'Job Attributes'. Is it possible to add custom values under this section? If yes, where do we set these values? Or is there an alternate way?

 Can such custom fields be used to set Job Preferences for receiving Job Alerts too?

Looking for your inputs.

Regards,

Himanshu