[feature request] Support preview content in search result

[acrobatman]

I like this plugin.
But I found that if I searched for something there were many results, it's difficult to find which result I really wanted.
So it would be nice that QS++ supports preview results for quick filtered results.
I found this plugin but it's not working. When I hold 'Alt' key for quick preview, the popup disappears quickly.

It would be nice QS++ support quick preview like this plugin.
Thx very much