To be able to assign an employee in a production/assembly line, you need to set them as a Production Member first
To do that, go to Job Scheduling Member page under Job Scheduling in the side navigation
The Job Scheduling Member page should look like this:
In this page, you would be able to add an employee as a Production Member, set, edit and remove their qualifications for model groups, and remove them from being a Production Member
To add an Employee as a Production Member, click Add on the top right of the page
After clicking Add, this pop-up should appear:
On the Select an employee dropdown, choose the Employee that you want to set as a Production Member
On the Member Code field, input a code that you would like to use for them
After clicking Add, they should appear in the dropdown on Select a member field
With that, you can add qualifications to the member you added