How can I use WindowMaker with GNOME

In order to get the gmc and panel menu stuff on the root window under Window Maker, you need to move the Window Maker Applications menu so that it is activated by the middle or left mouse button. By default, the gmc and panel root menu is mapped to the right mouse button. Unfortunately, the Window Maker Applications menu is also mapped to the right mouse button by default.

To correct this, bring up the Window Maker Configuration tool by going to the Control Panel, selecting the Window Manager subsection under Desktop and hitting the "Run Configuration Tool For Window Maker" button. When the configuration tool comes up, select the mouse icon. Under the "Workspace Mouse Actions", move the Applications menu to the middle mouse button, move the "Select windows" to the left mouse button and deselect the "Window list menu" option (you can use the GNOME pager to do the same thing as the Window list menu does). Save the new configuration. The next time that you use the right mouse button the root menu, you should get the gmc and panel menu. Under there, you can rescan/refresh the desktop and recreate icons, etc.