When user click on the button “Remove Corners”, it will select the external edges and launches the UI to set radius. User can set the radius needed for fillet. Important aspect of the addin is that it distinguishes the internal edges with external edges. And only enables external edges to set the fillet.
When user clicks on “Remove All Corners” button, it will select all the sharp edges, internal and external.
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Note: This app uses a custom installer (and not the standard App Store installer).