Taskbar supports to organize apps and shortcuts into folder. This helps you easy to navigate taskbar. Most of people adds applications in the same category into a folder. Follow below steps to add an folder:

  1. Open Taskbar application (not tasbar)
  2. Click on "Edit start menu"
  3. Click on "Edit start menu items"
  4. Click on "more" button (on top/right corner) then "Add new folder"
  5. Type folder name and select an icon, then click on  to continue
  6. On the next screen, select apps that you want to put into this folder