Usability of Chat Icons in Bottom Right of Websites

Thoughts on the usability of chat icons in the bottom right of web pages. This seems to be the norm.
Should they always be present?
Or if you have a support page, have a link for live chat and then display the chat icon? These seem to alwa…
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Menu Items Capitalization Title Cases vs Sentace Cases

I’ve come across varied examples of menu items using title cases for capitalizing words and others use sentence cases for menu items
For example, macOS mainly uses title cases for menu entries across applications.
But Google in their web a…
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Context Menu Order of Common File Commands – Specifically Save and Close

Thoughts on the order of common file commands in a context menu?
Close
Save
Save and close
or
Save
Save and Close
Close
What is more commonly used in a Context Menu? Close or Save.
Adobe apps seem to put Close first.
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Thoughts on Web Applications More & More Not Having Main Menus

Thoughts on recent trends of web applications not having a main menu across the top of the application?
Main Menu as in a more traditional horizontal menu across the top of the application.
File Edit View Help
Should they be there, or get …
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Methods or Tools to Determine a Menu’s Item (Command) Sorting

If user input is not available. Any tools or techniques to use to determine menu item order?
Most used commands towards the top, but is there a way to determine this without end-user input?
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Web App Main Menu Should Contain All Commands

Looking for insight or sources that might support that an application’s main menu should contain or at least attempt to contain all commands available in the application.
Any sources to support this? Strong arguments against the notion?
Th…
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UX exercise/ method to determine menu entries for an application?

Are there any UX exercises to determine what menu items may be missing in an application. Also any methods to best group menu entries in an application?
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UX exercise/ method to determine menu entries for an application?

Are there any UX exercises to determine what menu items may be missing in an application. Also any methods to best group menu entries in an application?
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Examples of UI Indicators for Live Support

Looking for an indicator example that would be the best way that indicates live support is available for a site. Any current examples that do this successfully? Site examples?