Hi Ron,
I assume that you've SIP Server or at least another PBX.
Since Users are at the top you may consider to create the User related objects, before you create the User object. As an example you may follow to the steps below. Genesys is flexible.
1- Create Extensions in related Switch
2- Create Agent Login IDs in related Switch
3- Create Places
4- Create Skills
5- Link an Extension to each Place you've created.
6- Create Users
7- Add an Agent Login ID, from the Switch, to the User. Set wrap up time if you need.
8- Add related Skills to the User. Assign a Skill level
9- In case you deployment requires, you may assign a Default Place to the User
10- Create Agent Groups
11- You may assign the Agents to the Agent Groups manually or you may write a simple script to link the Agent Group to a skill.Thus Agent those have that skill shall automatilcally member of that Agent Group.
This is a pretty simple guide.
Besides these steps, you also have to to consider Routing strategies and your Contact Centers' requirements to set up that objects.
Training Guides, Deployment and Referecence guides will help you.
Best regards
Gökalp