Neovim doesn't refresh autocomplete suggestions after I delete characters with backspace - neovim

I have installed coc.nvim for autocomplete suggestions. When I press backspace key to remove a character dropdown list disappears and I have to press tab key everytime to trigger dropdown list. How can I set it to trigger dropdown list automatically even if I delete characters like in vscode?
My nvim config Screenshot

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for example I would cmd+d a word then the shortcut would allow me to tab through each selection and edit them individually.
I haven't used sublime text in a month since I switched and can't even remember the shortcut I used to find the name of that action. so I don't even know if it was a plugin or a built in short cut.
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In sublime text I used to use a shortcut that allowed me to tab through my multi selection and edit each element individually.
for example I would cmd+d a word then the shortcut would allow me to tab through each selection and edit them individually.
I haven't used sublime text in a month since I switched and can't even remember the shortcut I used to find the name of that action. so I don't even know if it was a plugin or a built in short cut.
is there a similar shortcut in vscode?
You can multi-select in VSCode using alt+click
(can be changed to cmd+click in "Selection -> Switch to Cmd+Click for Multi-Cursor").
To tab through your selections install the tab-through-selections extension and then use cmd+shift+u to start iterating (alternativley ctrl in Windows), then:
tab to go to the next selection
shift+tab to go to the previous selection
click anywhere to cancel iterating
Hope this helps :)

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