How to create a webpart to show exixting document library on the subsite page?

Question

I have 10 sub sites on my company SharePoint and each sub site has its own document library.

I'm trying to display library on web page.

Please suggest something. *This is the original web part that already display on the page but only for 3 subsites. Thus, I need to create 7 more web parts to display the document library on those 7 subsites.And I want the web part categories same as the existing one.
*Another is the view of document library on those previous 3 subsites. [![enter image description here][2]][2]

Answer 1

1. Edit the Page (if a publishing site you may be prompted to check it out)
2. Add a Web Part (if a web part page, there will be buttons in each zone, if not then the option should be available in the ribbon)
3. In the web part choices under Apps your document library should be listed
4. Select it and click the Add button
5. Stop editing the page (if a publishing site, check it in then publish)