When you insert a file as an object, you are using OLE. When you use an image link, it's more similar to an HTML hyperlink. Most linked OLE objects won't work on a Mac, so if you ever need to move your work to a different computer, that might be a factor.

You can use these types of links with images. For other file types, you still need to use objects.

The input method is an OS change, which is probably why the Windows method doesn't work in macOS. Here's a link to creating an AppleScript to change the keyboard input:
https://apple.stackexchange.com/questions/376922/switch-to-a-specific-input-source-in-os-x-in-catalina-with-applescript

When you copy a slide, then paste it as an image in the same presentation, you are copying the thumbnail image. It will always be a lower resolution because the original image is low-res. To get a higher-resolution image, export the slide as a graphic, then import that image to the slide where you want it to display.

Microsoft does not monitor any of its help fora. To report a bug, click on File>Feedback>Send a Frown in the Office program, then describe the issue so it can be reproduced. Submitting the report sends it to the Microsoft programming team. They are unlikely to reply.

Then you'll have to write a macro in the template attached to the form and assign a keyboard shortcut to the macro. The exact code will vary depending on whether you have inserted a Legacy formfield checkbox, an ActiveX checkbox, or a Content Control checkbox.

This site is for support of Microsoft products. Mendeley is not a Microsoft product.

As I've previously answered, Mendeley is not supported in current version of macOS. https://service.elsevier.com/app/answers/detail/a_id/18155/supporthub/mendeley/~/is-mendeley-desktop-supported-in-mac-os-10.14-mojave%3F/

The solution is to use a different add-in, like Zotero or EndNote.

Sorry, Microsoft Office is not open-source code. Microsoft does not distribute parts of its software libraries.

Anonymous researchers on Twitter are not credible sources.

Cross-posted and answered at https://stackoverflow.com/questions/72418458/change-the-language-for-a-whole-new-document/72418974?noredirect=1#comment127945482_72418974

You would have to get a larger monitor to change this behavior. You can't set which Ribbon items get displayed in the built-in Microsoft groups.

Might be a typo, but you wrote you're using Office 2013, but the GPO you're using Microsoft Office 2016.

Most Office.js add-ins (those found under Insert>Add-ins>Get Add-ins) are by third-party vendors, not by Microsoft. You should contact the vendor with any problems.

In the case of the add-in you mention, I don't find anything by "Sunquest" or anything called "Powerpath" when I search add-ins, so I would guess that add-in is no longer available.

The PDF format was invented by Adobe, while Excel was invented by Microsoft. So technical inter-operation is not great between those formats. You can create fillable forms in Excel by locking/unlocking cells and applying worksheet protection. That would be much easier to implement.

Your question is not clear. If the text is on the left, why do you need a page number to refer to it? It's on the same page.