Steps to be followed to configure the National ID are -
1. Select Personal Details option in HRIS Sections dropdown as shown below

2. Activate the National ID feature by selecting the checkbox in the first column against the row

3. A table will be visible in which you can select the National ID for each country

If you have multiple companies activated then each country (which is mapped to the company) will be shown here, as and when you add a new company its country will be shown here (if it is not already here). If Work Status is being captured and there are both Local and Expat employees then an additional row for Expats will be visible. A different National ID can be captured for Expats.