9.17: Popover with delay example
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**Primary Actor**: User

**Scope**: Ngx-bootstrap DEMO / BS version 3&4

**Goal**:

Main success scenario:
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1. User opens Popover demo page
2. User clicks on Popover with delay sub-menu
3. User see button "Popover with 0.5sec delay"
4. When user clicks on "Popover with 0.5sec delay", then popover-container appear above the button with 0.5sec delay
5. When user clicks on "Popover with 0.5sec delay" again, then popover-container disappeared
6. Template src should be written with [delay]="500"

Variations:
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2*. User scroll to Popover with delay sub-menu