How to hide/remove/resize a text box in the information movie panel ?



Hi there,
I’m loving Kodi, but I don’t know how to edit the default skin (or which addon permits this) so I can hide some movie informations I don’t need…

I’d like to keep the information panel at its simplest. So, as shown on the screenshot below, I’m searchin how to :

a) remove the Cast textbox (I’m 100% local, and don’t need to display this content)
     Cool alternative : replace this textbos by a small fanart box ?
b) resize the plot textbox and expand it so it kinda fills the newly empty space created
c) hide the “date added” informations because I don’t really care about those.

Image

Subsidiary question, is there a way to make kodi understand that the “(xxxx)” movie release date at the end of the filename is actually the movie’s year information ?
In my old movie library, every file is named this way. Aaaand it’s a lot of files…

Thanks !