The Plugin Template
Default Templates
The plugins allow use template for display layout, so you can custom template easily
You can see in the folder {root}/wp-content/plugins/supplier-management-for-wordpress/templates/
Custom Template
The plugin support overwrite, custom template from default template. You only create a supplier-management-for-wordpress folder in the root of activating theme. Copy the template of the plugin you need to custom to here and change what you want to