I was following the video on "Visualizing Data," but I can't seem to get any of the chips to display the 7-seg display like is shown in the 4-bit register at 14:57.
Was this removed?  If not, how do I implement it to work?

That's a feature that he made for his video. It's disabled by default, the only way to activate it is by going into the code of the game.

The code, can be opened in Unity. I don't know though how to enable the display visualizer thing, but this a quote from another comment: "So, I found out that it must be somewhere in "the code" there is VidHelper.cs and VidHelper.cs.meta in there." If you do something with these files you can enable the features. And I know you can increase the size of the workspace, there's a guide here.

Hi, im the guy who said "So, I found out that it must be somewhere in "the code" there is VidHelper.cs and VidHelper.cs.meta in there.". Turns out i was completely wrong. I uploaded a video about how you change the setting. Here is the video:  youtube.com/watch?v=LeBJ-ppysp0