If you are using the FuseDocs App, see this article instead:
1. Open a new Excel Workbook.
2. Go to the FuseDocs tab
3. Click Settings inside the FuseDocs tab.
4. In the FuseDocs ribbon click on the cog next to "Support Tools"
5. Click the cog next to "Reload Configuration"
6. Wait till the green text appears which says "Configuration updated successfully"
7. If the text is red, please lodge a support ticket.
If you there is no change to the available FuseDocs toolbar buttons, either change the current sheet you are on. Or close and open the workbook. If problems persist, contact support.