show Loading Screen in MS CRM 365

Hi ,

Is there a way we can show loading screen in MS CRM 365. i followed the below blog

https://community.dynamics.com/crm/b/salimadamondynamicscrm/archive/2013/01/22/creating-a-loading-panel-in-dynamics-crm-forms

This method is not working in CRM 365 V8 , is there any other way to show the loading screen till the Action's business logic execution gets completed.