Notifier back with keyboard back button

i want to see keyboard to back press button to back notifier

I dont understand what you mean.

sir, close the open notifier dialogue box by keyboard to press back button.

You should show us the blocks you used.
Because this is already possible.

I added now a option to that block for possible next release.
So you have to wait until we release the feature on the custom dialog.

sir, attached below screenshot, same as possible one click on notifier button to show many messages.