xprop setting multiple fields of atom property
===

I searched internet and only found examples with setting only one field of property:

    xprop -id "$windowid" -f _NET_WM_STATE 32a -set _NET_WM_STATE _NET_WM_STATE_ABOVE 

but how can I set multiple fields?
I tried:

    xprop -id "$windowid" -f _NET_WM_STATE 32a -set _NET_WM_STATE '_NET_WM_STATE_ABOVE, _NET_WM_STATE_SKIP_TASKBAR'

and

    xprop -id "$windowid" -f _NET_WM_STATE 32aa -set _NET_WM_STATE _NET_WM_STATE_ABOVE,_NET_WM_STATE_SKIP_TASKBAR

and many other variants with no luck.
Is it possible ? :)