Install Unreal on Mac

Hi there, I am trying to install Unreal on Mac.

I registered, installed Epic Games Launcher, went to install but realized I didn’t have space so cancelled.
After clearing space, I can just see a greyed-out yellow button in Epic Games Launcher saying Not Installed Unreal Engine 4.23.1
I cant click it, there is a dropdown for changing the version but that is the only version.

I tried:
Deleting the folder HD/Users/Shared/UnrealEngine
Uninstalling and re-installing Epic Games

Thanks in advance to anyone who can help me

Click Library tab and then next to Engine Versions click the yellow + icon