>I have series of buttons in my command group. When clicked, this should bring some other buttons (not contained in a command group).
>
>When command1 in commandgroup is clicked, command1.. command2 should show up and others hidden..
>When command2 in commandgroup is clicked, command3.. command6 should show up and others hidden (command1 and command2)
>
>I'm used to writing in each clicked event.. command3.visible=.f., command4.visible=.f. etc and using SETALL to disable all command buttons then setting the visible property to .T. for all command buttons in the commandgroup.
>
>Any better way to approach this?
>
>I have 8 command buttons in my command group and more than 10 other command buttons..

Commandgroups were someone's idea of a "looked like a good idea at the time". Like Tamar said, they don't bring you any value, other than having a .buttons array (but even that's advantage is gone since now all containers have .objects and/or .controls).

You can group your buttons into containers - which don't have to be visible, can be transparent even when they are, can have .borderwidth=0, and can overlap. So you make one group of buttons in containerA, another in containerB. In Command1 you can simply say

thisform.CommandOneOn=not thisform.CommandOneOn
l=thisform.lockscreen
thisform.lockscreen=.t.
if thisform.CommandOneOn
   with this.parent
      .cntFirstGroupOfButtons.visible=.t.
      .cntSecondGroupOfButtons.visible=.f.
   else
      .cntFirstGroupOfButtons.visible=.f.
      .cntSecondGroupOfButtons.visible=.t.
   endwith
endif
thisform.lockscreen=l