Here you can specify the skills a resource has and the level of those skills. This allows the resource to be assigned to projects with matching requirements.
Existing skills are listed for the resource and you can click:
•Remove, after checking one or more skills, to delete those that no longer apply.
•Copy From to copy skill settings from a resource with similar skills (refer to Searching and Filters . These settings replace other listed skills.
•Add Skills and then select a skill that the resource has.
For each listed skill, you can select a different skill level for the resource.