Execution Progress message in UIPath

Hi, I want to create execution progress in UIPath. Let say I have 4 task in sequence.
What I want to do is when I run the workflow, There is message pop up says " please wait while the task is being processed". Then after all of the 4 task is done, the first pop-up message is closed and another pop-up message showed " your task is completed successfully" .

Is there a way to do this UI path?

You can do it by Custom Activities.