Create previous button with no changes on variables

[#1]

hello,

I have buttons that shows me tables or caches through a variable.

Now when I want to go to my previous selection, it takes into account the change of my variables.

How to retrieve only the previous selection without taking into account changes in my variables?

Thank you in advance

[#2]

For that have to create one more action in button.

right click on button>>Go to button properties>> Action>>Add>> External>> Set Variable.

Variable : Vhide

Value :

If (Vhide=0,0,1)

[#3]

thanks, it's working but I can't recover the previous selection. It's only for previous action.

So, it's not really a perfect solution.