As you most probably don't understand at all what all these window properties are about, some examples will probably help : In every examples also at first press 'New action', select some Action name and at last press 'Change hotkeys' and assign a hotkeys combination to your action.
Pick 'Command to execute'/'URL to execute' and enter the command, then press 'Autodetect'. Pick the right window. If e.g. the title is not always the same, set it back to 'not significant'. Press 'Ok' and the configuration is done.
Command to execute : rm -f ~/trash
URL to execute : '<your_home_dir>' Don't run if window title exists : file:/<your_home_dir> Don't run if window class exists : kfm kfmAlso select 'Search for last active matching window'.
Command to execute : netscape Don't run if window class exists : ^.* Netscape ( Note the class is '^.* Netscape', since the class differs for different Netscape windows ).Also select 'Search for last active matching window'.
For some reason I can't find a shortcut for maximizing a window in the standard KWM global shortcuts, although there is a IMHO not so useful shortcut for minimizing a window. Hmm, no problem :
Command to execute : kwmcom winMaximize