Plot graph beta node

### Feature Idea

I'd like to request the plot graph beta node (used with the Train LoRA beta node) doesn't scale on the y-axis which it currently does. It makes it very hard to compare previous/current runs against each other by eye. I'm new to LoRA so i may be using it wrong but i'd like it to also keep a snapshot of the previous runs graph, with only the steps you just did visible i can't really get the different unless i see it at the moment it changes. Thanks

### Existing Solutions

_No response_

### Other

_No response_