Is there away to turn this setting completely off? Sometimes after I'm done exporting my work, I have to go back and re-export the files again because I forget to click Selection Only.

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1 Answer 1


That's actually pretty possible and only becomes a problem when you install a new Blender version.

In your installation directory, you have the path: scripts\addons\io_mesh_stl\

In that folder, there should be the .py files concerning stl import/export.


is the one to open and mutilate.

In line 166, I find:

use_selection = BoolProperty(
        name="Selection Only",
        description="Export selected objects only",

The only thing you need to do is to turn 'False' into 'True' and you should have your checkbox filled by default. The same way you can adjust any default setting. Endless possibilities.

  • $\begingroup$ That worked :) you are the best. $\endgroup$ Commented Feb 21, 2018 at 22:40

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