How to add custom extension to the viewer?

[efdiloreto]

Not sure if there is any mechanism to do this. I would like to create a create a custom extension following this guide and add it to the viewer.

It's possible?

Thanks in advance!

[petrbroz]

I'm afraid this is not possible at the moment. If there's demand for this kind of feature, we could perhaps expose some additional settings that would let you specify custom script URLs. These would be added to the viewer webview as additional <script> tags.