How do I upscale Tile Sets the same way I can with objects?

I'm fairly early into my Gamemaker journey and was trying to figure out what resolution would work best for my (pixel) game. For reasons that are not relevant to my question, I decided that 640x360 but with 2x upscaled 320x180 sprites was what worked best for my art style and intention. So, the game looks like it's 320x180 but is actually 640x360.

The problem comes from tile sets. With Objects, there's no issue. I just apply my small sprite to the object than double the objects size. I can edit the sprite in its small size, and the changes will appear on the bigger version.

But with Tile Sets I have no idea how to do the same. The only thing I can figure out is to make my sprite, then make a copy (so I still have the original to edit), then upscale that and apply the upscaled version to the Tile Set. But when I do this, I then need to repeat the whole process if I ever want to make any changes to the sprite. That or I edit the big version with its insufferable 4-pixel pixels.

The second option I'm not even considering, and the first is time consuming and annoying. I need to go through three extra steps every time I want to edit a tile set. Over development, that time will add up fast.

Is there any way to upscale Tile Sets the same way I can upscale Objects? Or is there a way I can automate the {copy, upscale, overwrite previous sprite} pipeline to achieve the same effect?