<div>
Actually both answers have answered my question, and I only can select one for the accept answer, so I base on the sequence of reply, but I allocate the mark equally.<br />
Thanks:) 
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Actually both answers have answered my question, and I only can select one for the accept answer, so I base on the sequence of reply, but I allocate the mark equally.
Thanks:)

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<div class="content wysiwyg-content">
I am using K Desktop Environment (KDE)<br />
For example, I want to set some shortcut key that similar to windows such as<br />
Window+D is minimize all the windows,<br />
Window key is start the start menu,<br />
and other personal shortcut key such as<br />
ctrl+f to start the firefox etc...How I do it?<br />
Also, how to have double click worked in KDE?
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</div>


I am using K Desktop Environment (KDE)
For example, I want to set some shortcut key that similar to windows such as
Window+D is minimize all the windows,
Window key is start the start menu,
and other personal shortcut key such as
ctrl+f to start the firefox etc...How I do it?
Also, how to have double click worked in KDE?

How to configure shortcut key and use double click in SuSE linux entreprise server 9

Linux is a UNIX-like open source operating system with hundreds of distinct distributions, including: Fedora, openSUSE, Ubuntu, Debian, Slackware, Gentoo, CentOS, and Arch Linux. Linux is generally associated with web and database servers, but has become popular in many niche industries and applications.

Linux

A Linux distribution is an operating system made as a software collection based on the Linux kernel and, often, on a package management system and are available for a variety of systems. A typical Linux distribution comprises a Linux kernel, GNU tools and libraries, additional software, documentation, a window system (the most common being the X Window System), a window manager, and a desktop environment. Most Linux systems are open-source software made available both as compiled binaries and in source code form, allowing modifications to the original software. Over three hundred distributions are in active development, including commercially backed distributions (such as Fedora, openSUSE and Ubuntu) and community-driven distributions (such as Debian, Slackware, Gentoo and Arch Linux).