First you need to install 'Re-order' Plugin from your WebAsyst Installer, It will automatically copy the plugin files to correct folder on your webasite.
Now login to your webasite's administrator panel (backend).
Just Navigate as per flow - Shop -> Plugins -> Re-Order.
Here you are on settings page.
Keep checked 'Enabled' Option.
Default values are assigned to all fields, You may edit them if you willing to do so.
Put values of text, you want to display as button / link.
You may edit style as per your theme requirement.
Save settings.
Now you need to put the code in template, you can do this from your back-end admin panel.
Go to Backend -> shop -> storefront -> (select the theme you are using)
Open template file my.order.html and add code {shopReorderPlugin::reorderButton($order)} at the location where you want to show Re-Order button. Save it. (check screenshot)
Open template file my.orders.html and add code {shopReorderPlugin::reorderButton($o)} at the location where you want to show Re-Order button. Save it. (check screenshot)
