Joomla = Virtuemart plugin modification

We have a Joomla 3 and Virtuemart 3 website. We brought this plugin: [login to view URL] We should modify this plugin per client's need. EXPLANATION What should be changed? Now when you use the plugin it shows just in the Virtuemart - Custom fields and then you can just there add the bundle products. On product, you just add a plugin and it shows on the product page. What should be changed here? For each product, the admin should be able on the exact same way to add it but in the product administration after selecting this plugin. For each product and not like is now in the Virtuemart Custom fields only. Everything should be the same just in Virtuemart - product administration - custom fields when he selects the bundle's plugin it should be able to select the bundles that he wants. The layout of the bundles should be fixed on the front page. We will provide you the exact layout (like are the other Virtuemart modules). We will provide you extra explanation step by step.