I'm a casual user of GNOME. I would like to do what someone mentioned on here: use a TWM with the GNOME menu bar for applets but I want them to have predifined

I'm a casual user of GNOME. I would like to do what someone mentioned on here: use a TWM with the GNOME menu bar for applets but I want them to have predifined "snaps". [0] How hard is it to implement this? [0] http://imgur.com/SO4LmDq http://imgur.com/SO4LmDq