Change Monodevelop's "Add -> New File" templates

Windows user here. Running latest version of Unity 2017 (.1.0f3). I successfully added custom templates for the Unity Editor (by modifying the files in C:\Program Files\Unity\Editor\Data\Resources\ScriptTemplates), and everything works fine. Now I want to do the same thing for Monodevelop: when I right-click on a folder in the solution explorer, and then click Add -> New File, I want to be able to create files using the same template I put together for Unity Editor. I would also like to be able to setup some templates for non-Unity objects (conventional classes, structs, interfaces, etc). Thank you.