While working for my own Anomaly mod I wasn't really enjoying the vanilla Entity Codex (EC) and approach to study notes. So in my mod I decided to rework it for next major update.
As you can see on pictures this is an Entity Data Base:

• Window and images no longer small, so you don't need to break your eyes anymore.

• Added ability to group Entries by Knowledge Category (vanilla EC), by Mod, by Threat and by Tag. (The last 2 is related to classification of anomaly I use in Anomalies Expected)

• If Entity have study notes, then it will show little icon next to it (can be seen on Cube).

• When you click on Entity it will show it at bigger size, with dynamic Label and Description. In addition, it will show all unlocked study notes related to it.

• Yes, you read it right, now all study notes will be also saves in Entity DB. So even if you remove entity from the map you will still have access to read it study notes afterwards from Entity DB.

• Vanilla Entity Codex not touched, so you can always swap back to it or from it at any point.

A bit more, but related to anomalies that using Anomalies Expected mod as framework:

• Now Entity Label, Description and Threat Class will get updated in Entity DB (wasn't a thing in vanilla EC). Additionally, you can group Entity now by some tag, if they related.

• Now you can select which study notes will be synchronized with Entity DB, so when you get duplicate of already studied anomaly before, then it will get same progress right away. Which will be removing the need to through same study notes, so you can use or destroy duplicate anomaly way faster.

• Now some Entities can require multiple duplicates to be studied before receiving a study note or unlocking related research. Mostly intended for Pawn type Entities, that can be hold on platforms, so for example, study note will be unlocked after study of 5 different Metalhorror.

• New research projects can be locked behind study notes to prevent vanilla approach of unlocking research projects the moment you first time see entity without any study work done.

Additionally this update will be bringing 2 new anomaly Entity.