Hi everybody,
Am new here and am wondering, if there is a step by step tutorial for beginner to implement plugins!
I need a plugin to show the tasks of multiple projects (you can configure it) in the same calendar view.
May be it is easier to patch the calendar plug-in for that. But I do not seem to grasp where I should start and what file need to be patched for what!
Regards
YE
Welcome to the forum.
Your goal rather high, maybe too high for a beginner. I recommend starting with something easier, simpler. Just to avoid getting doomed.
That is quite discouraging 
Ok
Is there any good step by step tutorial ?
I am keen on understanding which file is doing what, and when it will be rendered/called
Regards
For the basics
https://docs.kanboard.org/v1/plugins/
For advanced, look at others plugins and learn from that.
You can also ask questions, here or if you want quick support