Grouping vs combining: You can see the tweaker's terminology in the help file:

Hi,

I'm sorry, but the published source code can only be used on Windows 7. Quoting from the README file on GitHub:

This repository contains most of the source code of 7+ Taskbar Tweaker. The published version is fully functional on Windows 7, but is not functional on newer Windows versions due to omitted offsets. Some other boring functionality, such as the update checking mechanism, was omitted as well.

The tweaker has the following feature: If you hold Ctrl and Shift while opening Taskbar Inspector, it won't close on focus loss and will have a close button. Perhaps that will work for you.

It's difficult for me to say anything about this without at least having the error message. Since you haven't seen it lately, I'm closing it as fixed. If that happens again, please post the full error messages and we'll try to figure out why there's an error.

Please provide more details. What is the exact error message that you're seeing? Are you using any other customization tools which might conflict with the tweaker?

So you changed it to "Enabled" in Startup in Task Manager, and it still doesn't work? I'm not sure what else can be the reason, except perhaps a third party program blocking it. One of the users told me once that he had the same issue and he found out Avast was blocking it. If you're using Avast, or another non-default antivirus, you might want to check it.

That's already possible with the advanced options. See my answer here, and adjust the value accordingly:

https://tweaker.userecho.com/topics/949-right-click-on-taskbar-items-to-minimize-window

So I understand that's it works not. If not, let me know.

The 7ttRefreshWnd window is used by 7+ Taskbar Tweaker to be able to apply settings without restarting explorer, while keeping the order of all taskbar items. It isn't supposed to be visible on the taskbar. I'm not sure why you're seeing it, perhaps it's a conflict with some other customization tool which causes this. If you find a way to reproduce it, please let me know.

The tweaker is installed in the %LocalAppData%\Programs folder by default. This way, administrator rights aren't required for the installation.

Do you mean that the tweaker doesn't start automatically, but works if you run it manually?

Make sure that the checkbox to run the tweaker at startup is enabled in the settings, and that the startup item is not disabled in Task Manager (the Startup tab).