Open custom activity from custom button

Hi 

I have followed this guide to create a button that open a custom activity record. 

https://ribbonworkbench.uservoice.com/knowledgebase/articles/358664-create-a-command-bar-button-for-your-custom-acitiv

The problem is that after you created the record and pressed save (or save and close) the parent record doesnt refresh automatically the way it will I you create the record with standard functionality. 

Is there another way I can implement this? 

Thanks