option to copy the save button in drupal commerce?

Basically What I need is a way to make it easier for the sales team at my work to place a manual order. Every time they need to add a line item they have to scroll down to the bottom to press "save" and repeat until the have added all the necessary items(products, shipping, discounts). I was hoping this plugin would work but it doesn't seem to communicate with drupal commerce forms.

Would it be possible to add an option in the settings for other forms, in this case, which allows me to add the "save" and "delete" button into drupal commerce forms?
or is there a hook I can add to the module which will allow the save/delete buttons to be copied in the drupal commerce forms?
or am i just better off making my own custom module for this functionality?

I'm not sure if this is a support request or a feature request its kinda both, but any help or feedback is appreciated.

-thanks