Blender-like "Frames"

[munchyfly]

Motivation
I sometimes tend to put all operations in one file and I end up getting confused of what does what.

Description
Something akin to Blender's Frames in the Node Editor, where you can group nodes and add them to custom labeled frames (see screenshot for an example made in Blender).

Alternatives
If framing isn't possible, then maybe implement just the labels.

Of course, only if it's possible and people think it's interesting to have.