The global seed option can help to generate a lot of variations of a given node tree. The issue is that it gets reset every time we open IMT again.
Justification
For this feature to be more than a preview necessitating and immediate bake of the graph or writing down of the seed in a comment somewhere in the file, it needs to get saved, embedded into the graph and not carry over to other open canvas graphs. Instead of it being fully singular and global, let it be a local seed override for any given graph.
Thanks for considering this FR! 