TL;DR:
Sorry for the delay in this quality-of-life update. I was affected by the fires in Los Angeles, and it took a bit before I could get back to the game's development.
I implemented a bunch of features you've been requesting (listed above) and it was a nice update to get me back into the groove with coding the game.
The main thing many of you have been asking for, you can now edit saved games:

And for those of you trying to do precise pinball designs, the grid could come in handy:

As always, there's a behind-the-scenes devlog where you can see all the changes in practice:
Watch on YouTube
I'll now work on the audio a bit before implementing the second issue of Pinball Magazine, which should conclude the work on the line element of art. Can't wait to get onto the next one (shape) right after.
Best,
Retro