How to edit Blueprint default variable via editor scripting?

Development Pipeline & Plugins Editor Scripting
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Hello, I’m trying to make an EditorUtilityWidget where if I press a button, it changes certain default values of a blueprint.

how
how1081×318 46.9 KB

Is there a way to achieve this (possibly w/o c++)?

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The only semi-BP solution I remember is using the SetEditorProperty on the ClassDefaultObject (which I exposed from C++), but as far as I remember, this editor utility function was only added in 4.26.

SetEditorProperty node

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An alternative through python. You can run python script through blueprints.

import unreal

bp_object = unreal.EditorAssetLibrary.load_blueprint_class('/game/BP_Modif_Default')
bp_default_oject = unreal.get_default_object(bp_object)
bp_default_oject.set_editor_property("age",21)
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This seems to be the solution, yet I can’t test 'em since my project is at .24 :frowning:
Might have to consider migrating, thanks a lot!

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Thank you for the suggestion, but I am looking for the in-EditorUtilityWidget availability as of now.

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Thanks! It worked! Exposing class defaults via C++ was a must.

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I know it’s an old thread, but is there a way to set default values of actor components’ variables? It just doesn’t seem we have access to components through default object, right?

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I’m trying to figure this out, but no dice yet.

A simple “this isn’t possible” would do