Hide a button that adds a value to a column

[lisej]

Hi
I have an app that counts points in a competition and so I have buttons that when you push them they add a specific number of points to the points column. The following action is connected to the button: [Point] + DECIMAL(Konkurrence oplysninger 2[Beholder Fund 1]), where [Beholder Fund 1] designates the number of points designated to that particular button. There are a total of 6 buttons with this action with different point values attached to them,and this number varies depending on the competition but is set at the start of each competition.
I want a particular button to disappear once it has been pushed, however I simply cannot figure out which show_if conditions to use, especially since the order in which the buttons are pushed can vary and so I can't just base it on the total number of points. Does anyone have any ideas?

[Steve]

Consider adding another column, of type EnumList, that records which buttons have been pressed, then reference this column in the button's Show if.