sticky window and uniconify all windows ?

[William Xuuu <william_xuuu 163 com>]

Hi,

I have two questions.

1.By the following, i can press Alt and left mouse key together to move a
  window, but i have to hold the keys still until i drop the window
  somewhere. How can i do this(as in FVWM: `Mouse 1 A M Move' would do):
  press Alt and left mouse key together to select a window, and release
  both keys, now the window is sticky with mouse point, that way i can move
  it very conveniently.

(bind-keys window-keymap "M-Button1-Click" 'move-window-interactively)

2.`iconify-workspace-windows' can iconify all windows in current workspace,
  are there any corresponding functions that would uniconify all windows in
  current workspace ?

thanks in advance.

--
William