How to implement multi-level headers in a basic table (ListTable)?
Question Description
How to construct such hierarchical structure to display in table header cells like: Department (Finance, Technology), Name (First Name, Last Name)?

Solution
In VTable, the configuration option "columns" can be used to configure sub-items under "columns".
Code Example
{
field: 'full name',
title: 'Full name',
columns: [
{
field: 'name',
title: 'First Name',
width: 120
},
{
field: 'lastName',
title: 'Last Name',
width: 100
}
]
},
Results
