9.11: Popover Custom triggers example
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**Primary Actor**: User

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

**Goal**: Show user how to configure different triggers for popover

Main success scenario:
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1. User opens Popover demo page
2. User clicks on Custom triggers sub-menu
3. User see 2 clickable buttons "Hover over me!" and "Double click me!" and input with placeholder: "Show popover on input change"
4. When user move mouse to "Hover over me!", then popover-container shown on the top of button with specific text
5. When user move mouse out of the "Hover over me!", then popover-container disappeared
6. When user clicks once on "Double click me!", nothing happens
7. When user double clicks on "Double click me!", then popover-container shown on the top of button with specific text
8. When user clicks once (or click outside) on "Double click me!" again, nothing happens
9. When user double clicks on "Double click me!", then popover-container disappeared
10. When user clicks inside the input, nothing happens
11. When user send any key to the input, then popover-container shown on the top of input with specific text
12. When user click outside of the input field, then popover-container disappeared

Variations:
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2*. User scroll to Custom triggers sub-menu