Would like lock the editor detail overwriting when using blueprints. How?

Development Programming & Scripting Blueprint
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1

I’m new to Unreal Engine, so just tell me if I’m doing something wrong and I’ll try my best to fix things.

Now, I was following some blueprint tutorials and for some reason no matter what I changed in the blueprints, nothing really changed. It wasn’t until I found out that I could change the same things in the editor details (Look at the pictures in attachment for what I mean by ‘editor detail changing’ and ‘blueprint detail changing’).

My question is;
Is it a bug?
A feature?
Am I missing the point, or can I lock the editor from overwriting the blueprint editing?
If I can lock the ‘editor detail’ overwriting, where and how do I do so?

2

The blueprint details is for the blueprint in general, the editor details is if you want to modify individual instances of that blueprint.

3

Oooooohh, I get it. So when I mess it up, I just re-insert the blueprint to the scene.
This is rather neat when I finally understand why it behaves like this.
Thank you, Jamendxman3.