Ribbon Button to Create Multiple records once in same entity using Plugin.

Hi,

I would like to have discussion on plugins. As I'm new to CRM dynamics 365, I would appreciate very much if you can help me in the plugins concept. 

My problem is - based on custom ribbon button for existing records in entity , I have to take information from current record and create multiple records at time in same entity. Can anyone tell me how to proceed with plugin ? I don't want to go with workflow at all. 

Isn't plugin with C# OR Plugin with JS ?

Reference materials , Articles or Sample Example will be helpful !

Thank you 

Deepthi Thotakura