I can't Install FlexiCaptureEngine Activity

I’ve watched a video on how to extract and verify Abbyy Document in UiPath. I want to recreate that but I cant see the package his using (screenshot below) in package manager. Any Idea?
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‘UiPath.Flexicapture.Activities’ is available under UiPath Beta. If you don’t have the source configured already under ‘Manage Packages’, configure as below:

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You should then be able to install the related activities.

Thanks,
Rammohan B.