Advanced Actions to only Show a button once others have been clicked

hello, all.  i'm having difficulty execution of advanced action.  in nutshell, have 7 buttons on slide.  a user must click 7 in order next button appear.  here's i'm at:

i have variables named com_clicked; mon_clicked; edu_clicked; etc. coincide named buttons

once clicked, have 2 things happen each, via executing advanced action:  assign 1 variable, , change state of shape display content associated button.

this works perfectly!

here's i'm stuck...i can not next button appear after buttons clicked. see image below.  my next button not visible on output.

where going wrong?

you have combine present standard action conditional action in 1 conditional action 2 decisions:

first decision' always' mimick standard action

   if 1 equal 1

     change state of....
      assign v_com 1             sorry, way of labeling variables, starting v_
    

second decision 'shownext'

if v_com equal 1  and

      v_....

 

     show bt_next

     enable bt_next

 

shared actions not possible in case, need duplicate advanced action, have edit first decision in each duplicate. solution has been posted many times on forum, why search not better working. have several examples on blog well.

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