A few things I have picked up in the last week.

The internal scale is in centemeters.

Ie 1 uint in unreal is 1 cm.
This is helpful putting things in scale.

If you go to the folder for a project

Only the Config, Content and Source are required.
- Source will only be present if you have written c++ code.
The files in the directory are required as well.
Other folders are temporary and can be removed
- But this will make startup slow.

You can find your downloads by

Start the Epic Games Browser
Go to Settings
Scroll Down to Edit Vault Cache Location

There is a community style guide

here
I need to spend some time reading this.
But this will make life much easier for group projects.

Export to FDM does not do what you want.

This moves some of the selected item but not everything.
Migrate is the only tool.
This will apparently also update between versions of the enginge.

A couple of tutorials I have done

Blueprint Kickstart
- This is an hour and a half or so.
- It a lecture on blueprints.
- It is a good theoretical background thing.
- This is a really good video
  - But it is more of an overview than a nuts-and-bolts discussion.
- Blueprints are the main tool inside the engine for doing things
  - We have seen blueprints in an actor. (Transporter)
  - But they are also used for
    - Level control
    - Animation
    - The sequencer (controlling "movies" inside unreal")
    - UMG - the user interface builder
    - Niagra - the particle system
    - Variant manager.
- There are some "debugging blueprints" I need to explore further.
- Blueprints are compiled into a bytecode
  - This happens quickly.
  - It is less efficient than c++ code.
  - But this is most visible in the editor.
  - Apparently it works much better when playing for real.
Comprehending Projects and File Structure
- This is fairly basic.
- It gives you a good background into how unreal is organized on your machine.
- But probably not necessary right now.
Building Better Pipelines
- Those of you who have done computer animation will probably benifit from this.
- I don't know enough about the software to completely benifit from this.
- But he has many tips on how to efficiently bring in assets.
- There are a few "working in groups" tips I need to experiment with
Blueprint: Essential Concepts
- A great overview of using bluprints.
- I will talk about this one.
- You should do it however.
Introducing Unreal Engine
- A very careful examination of the Editor.
- You should do this one.