I have installed the PulseAudio Equalizer that opens when you click an icon, that appears in the Task Bar area. I would like to be able put this into the Hidden Icon area of the Control Panel. But, it doesn't appear as one of the 'Extra Items' in the 'Display' section of the System Tray Settings window.

I've also installed the PulseAudio Volume Control to make sure the equalizer is 'in the loop' and active. I'd like to move this icon to the hidden section, also.

How can the user customize the System Tray Settings' Extra Items list? Or, is it possible to get an icon into the 'Hidden Section' in some other way?

I assume that by "Control Panel" you are referring to the item in the panel which displays icons for background-running applications, notifications and various desktop/system controls (which is known as the System Tray).

The System Tray is reserved for items specifically designed to be added to the system tray. The Extra items that you see in the Display section of the system tray settings (I believe) are special plasmoids which have been designed to be added to the system tray. If the application doesn't provide a system tray icon, I believe there are 3rd party apps that you can get which can turn any application/window into a System Tray icon (mostly by minimizing the window, removing the window's entry from the task bar and adding a system tray icon for the window, possibly with a minimal menu for the window's icon).

For items already in the system tray, you can change the visibility of the item by opening the system tray settings and in the Entries tab changing the Visibility setting for the icon in question.

airdrik wrote:I assume that by "Control Panel" you are referring to ... the System Tray).

Yes, you are right. And my objective was to get the system-wide equalizer and the pulse audio volume control icons into the 'pop-up' menu that contains the hidden icons.

... I believe there are 3rd party apps that you can get which can turn any application/window into a System Tray icon

That's great. I didn't know that. This would be a fine work-around, especially if these icons may be moved into the pop-up menu.

I did an Internet search on the terms

convert kde task manager icon to system tray icon

and there are no leads. I imagine ... you can't directly recommend applications that aren't part of KDE, but please give me a way of finding them. If you can't name them, or even give direct links, then please suggest the correct search terms so that I could find them by myself.

Or, if you can think of another way of achieving the end-objective, working totally inside KDE, that would also be appreciated.

The question is, how not to clutter the Task Bar with system-related icons that are of the 'set-and-forget' variety. But still, they should be easily accessible when an adjustment is needed. In other words, these are Icons of the same type as one would normally place into the 'hidden area' of the System Tray.

The application that does this is KDocker. The effect is just to shift the program's Icon from the Task Manager into the Control Panel. So, in effect, it occupies the same total amount of space after, as it did, before because moving the icon into the Hidden Menu -- is not supported.

KDocker tech support pointed out that these types of utilities (qpaeq and PulseAudio Volume Control) should have a built-in capability to be 'placed in System Tray'. I looked, and he was right: there's a check-box for that. To avoid any conflict, I've uninstalled KDocker.

So, the Subject of this thread no longer applies -- the answer is 'yes' we can, or yes, we should be able to.

But now, the check-box appears not to be working. So, I'll start a different thread for that question.