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Update (April 2022): Check out the Taskbar Clock Customization mod for Windhawk:
https://windhawk.net/mods/taskbar-clock-customization
Original answer:
Hi Florian,
More customization of the taskbar clock is currently not planned for the tweaker, but keep in mind that you can also customize it using your system regional settings.
The only drawback is that this change is global, i.e. every application that shows a time/date will use this format.
Edit: there's also T-Clock Redux, last updated in 2018. Haven't used it myself.
For a permanent grouping, you might want to try using win7appid:
http://code.google.com/p/win7appid/
It allows you to assign Application IDs to shortcuts, so if you assign multiple shortcuts the same AppID, they will group.
Available in v4.2.1 as a registry option. See help, Advanced -> OptionsEx section for more details.
In fact, despite of me bashing the classic theme, in this situation the "modern" theme is the buggy one :)
In v4.2, I didn't adjust the clock width to the new time text width, and it worked on the modern theme only because it calculated the width based on both the date and the time.Look at the following long date:
Now, if you use small icons, the width would stay the same, even if there's no date anymore:
I fixed this bug in v4.2.1, too.
Fixed in v4.2.1.
I'll look at it, although, to be honest, classic theme compatibility is not a priority.
This is not the only issue with the classic theme on recent Windows OSes.
Microsoft surely puts less effort in the classic theme than it puts in the default theme, and I don't see any reason to keep using it.
If your reason is performance, here's a nice article I've stumbled upon recently:
Hi!
There's a registry option to disable jump lists that appear by dragging.
Set the following DWORD value to 1:
Branch:
HKEY_CURRENT_USER\Software\7 Taskbar Tweaker\OptionsEx
Name:
jump_list_drag_disable
Update: v4.2 has a checkbox for disabling jump lists that appear by dragging.
In v4.2 there's an option to display seconds on the tray clock.
If you are interested in a custom date format, please create a new feedback.
Everybody who experienced it so far is using a 64-bit OS.
A commenter on YouTube said he managed to solve it by installing the tweaker to a different path.
I, meanwhile, couldn't reproduce it, and I have no idea what causes the issue.
If you can reproduce it on your PC, please contact me. Thanks!
Update: please read about the issue and v4.2 here:
http://rammichael.com/7-taskbar-tweaker-v4-2
Customer support service by UserEcho
Surely not a bug.
The list box is a standard Windows control, and I'm not sure that's possible, except for the space on the right, which I think would look ugly.
Currently you can use ctrl/shift for multiple selection, and Ctrl+A for selecting all (I think you suggested that). Those quite do the job.