Missing column in Settings > Repositories

We have 2 instances of Nexus3 running (Test & Prod) and I am currently finishing setup of the Prod instance. For the order of routing to proxied repositories, I wanted to check the size the proxied repos are using in the Test instance (I know, number of components is better, but it is an initial estimate). That is when I noticed that on the Test instance, the column ‘size’ is missing!
Now, I do sometimes change the column sizes, depending on the amount of space I have on a monitor, so I may have accidentally made the column 0px wide – if that is even possible. However, it would be nice to have a feature to restore the original view, so I can get back this information.
Anybody know how I can get the column back?

Test instance:

Prod instance:

If you hover over a column a down arrow should appear to the right. Clicking on it will show a menu where one of the options is columns.

Indeed it does! But what do I do when there is no column ‘Size’?

The repository size feature is only accessible when using PostgreSQL as a databse

It looks like its also requires a license.

Thanks, that would explain it. Both have a license, but the Test is not using Postgres.