Hi ​@George O'Gorman, thanks for reaching out! 

To bring a selected layer to the very front of all other layers in Figma, you can use the keyboard shortcut Option + Command + ] (macOS) or Ctrl + Shift + ] (Windows). 

If you’re a macOS user, you can also press Command + Option + ] to accomplish the same result. 

I kind of figured out how to do it on the layer window, but that’s great for bringing one single one to the top.