How to disable the HTMLViewer (Mac) Default Contextual Menu?

I am using the (MacOS) HTMLViewer controls and if I were to activate the contextual menu, I get the following

Is there a way to remove this default contextual menu or remove the “Reload” option.

What I am trying to do is to integrate TinyMCE to the desktop mac app and it already has its own contextual menu. The Default “Reload” just blocks the TinyMCE contextual menu and when press would remove everything that was there before.

Here’s the example

Thank you

Check WebUIDelegateMBS class:

We have a DisableContextMenu property there for you.