Dolphin is the File manager that is shipped with KDE. It recently added, post Dolphin ver 26.04, the ability to assign keyboard shortcuts to Service menu.
For Dolphin here are some of the common keyboard shortcuts that are available which makes working with it faster.
F9 - Show/Hide the places left nav panel in Dolphin. F7 - Show/Hide the Folders panel or directory tree structure in the left nav of Dolphin. CTRL + P - Shift the focus to Places panel. For keyboard warriors who want to navigate using keyboard. CTRL + ALT + SHIFT + A - Act as an administrator, i.e. open Dolphin as a root. Use with caution CTRL + ALT +C - Copy the absolute path of the selected file into clipboard. CTRL + PAGE UP/PAGE DOWN - Navigate to the next opened tab. F4 - Open a terminal inside Dolphin application at the bottom. SHIFT + F4 - Open a new terminal window independent of Dolphin and outside of Dolphin. This window does not close when Dophin is closed. ALT + HOME - Navigate to $HOME in the existing open tab. CTRL + H - Show the hidden files. By default Dolphin does not display hidden files. ALT + 1/2/3/..8/9 - Navigate to the first tab, second tab, third tab,…, eighth tab and ninth tab. ALT+0 - Navigate to the last tab.
I like how this was added, will make things alot easier when I am feeling lazy (I seriously cannot believe I touch typed this, I have had 11 cans of op rum since about 11am)
In KDE, applications use single click or double click to select an item or open an item. This is controlled by System Settings > General Behavior in Plasma 6.6.x or higher. There look for section “Clicking” and the options given under it.
If the option Selects them is selected then applications will work with double click. Single click to select and Double click to open or edit or add new an item.
If the option Opens them is selected then applications will work with single click.
But for those applications which still use older version of QT libraries this setting does not alter their behavior. For that a change will have to be made in the file $HOME/.config/kdeglobals. There in the section KDE give the key-value pair as follows: SingleClick=false - This will enable double click behavior for applications using old QT libraries. Single click to select. Double click to open, edit and so on. SingleClick=false - This will enable single click behavior for applications using old QT libraries. Single click to open, edit and so on.
This is especially helpful for some applications like, keepassxc and a few others. If you are using Dolphin under GNOME then also this file has to be used. The file $HOME/.config/kdeglobals does not alter the behavior of GTK3/4 based applications.