Hi I want to build a new ship. Blender addon has already been installed and all you have to do is model it, but it is difficult to do it with only written text.
This is not a Tech Support request. If you want help with modding then you can try the Scripts and Modding forum. Maybe read the sticky threads and other resources there first, though, rather than just asking someone to "teach" you things that they have already spent time and effort writing information about.