The Note Editor will open a code/script
window where you can keep notes and code snippets or any other
information that you consider relevant to the project. You can
create multiple notes and name them from the right mouse button
menu in the resource tree. Notes can also be grouped and re-ordered
like any other resource. If you have imported a project created
using a previous version of GameMaker Studio, then you will
also find a
Compatibility Report included as a note in this section.