GmxOrg is a very small program for quickly reorganizing GameMaker: Studio projects.
Essentially, instead of dragging & dropping assets around, it allows you to work with a textual format like
sprites:
group1:
sprSome
sprOther
sprOuter
which in turn means that assigning a number of sprites to a group is merely a matter of adding a "header:" before them and indenting their names by one "layer".
gmxorg myproject.project.gmx
Creates a myproject.project.gmx.py
with project structure next to the project file.
gmxorg myproject.project.gmx.py
Imports project structure back to myproject.project.gmx
.
Note: You should make sure that your project is saved prior or this will override your changes.