After a successful installation, if PlusSpec shows as "blocked" in the Extension Manager, please complete the following steps:
- Click the gear icon to open SketchUp extension settings. Under "Loading policy," you will see that SketchUp is set to Identified Extensions only.
- Change this to "Approve Unidentified Extensions" and you will be able to allow plugins you trust on a case-by-case basis.
- You should now be able to enable PlusSpec in the extensions manager:
- You may need to go to View>Toolbars to enable the PlusSpec Tool set inside of SketchUp.