Is there a plugin to add a search box to add new page/block screen?

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I thought I had seen someone with this feature before, where it adds a search textbox at the top of the add new page/block screen. Can't seem to find anything about it anywhere. 

#206319
Aug 13, 2019 21:43
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#206320
Aug 13, 2019 21:48
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Yes! Thanks so much.

#206322
Aug 13, 2019 22:44