Is there a tutorial on how to do this?
I have tried
https://community.coreldraw.com/sdk/w/articles/174/custom-dockers-in-coreldraw-corel-designer-and-corel-photo-paint
and I cannot seem to get this to work! My docker does not show up.
You can get access it through Macros' docker. It's only decision.
It's a good thing it though works like this.