Configuration

First lines you should have:

(require 'workgroups2)
;;   ...     <--- Change some settings here
(workgroups-mode 1)        ; put this one at the bottom of .emacs

Now let's change some settings:

Basic settings

(setq wg-use-default-session-file nil)  ; autoload/autosave (turn off for "emacs --daemon")
(setq wg-prefix-key (kbd "C-c z"))                  ; Prefix key
(setq wg-default-session-file "~/.emacs_session")   ; Session file

;; Set your own keyboard shortcuts to reload/save/switch WG:
(global-set-key (kbd "<pause>")     'wg-reload-session)
(global-set-key (kbd "C-S-<pause>") 'wg-save-session)
(global-set-key (kbd "s-z")         'wg-switch-to-workgroup)
(global-set-key (kbd "s-/")         'wg-switch-to-previous-workgroup)

Mode line

Mode line string (wgName:~:-:**) is created by function wg-mode-line-string in workgroups-functions.el

To customize braces: [wgName:~:-:**]

(setq
 wg-mode-line-decor-left-brace "["
 wg-mode-line-decor-right-brace "]")

To display only workgroup name: [wgName]

(setq wg-mode-line-only-name t)

Hooks

You can use these hooks:

workgroups-mode-hook             ; activating Workgroups
workgroups-mode-exit-hook        ; turning off
wg-switch-to-workgroup-hook      ; when switching to a workgroup