If you had really explained why you wanted to use increment, you should have gotten an answer immediately.
Here is a possible work flow:
- create a user variable for each button with a default value of 0 (will be treated as a Boolean); will label them v_test, v_questions and v_resources
- do not use Increment (has no sense) but Assign to toggle that variable to 1 when the button is clicked; that means it will not be incremented at all, but will always be 1 when the button has been clicked, whatever the number of clicks
- summarize the three variables with the same action in a fourth user variable v_sum
- add decisions to see which state has to be applied.
This means you'll need a conditional action for the buttons, something like this (didn't test it out, sorry)
Decision 1 'Always' (mimicked standard action)
IF 1 is equal to 1
Assign v_test with 1
Expression v_sum = v_test + v_resources
Expression v_sum = v_sum + v_questions
..... whatever you want to do like 'Show'
Decision 2 'CheckFirst'
IF v_sum is equal to 1
Change state of arrow to .....
Decision 3 'CheckSecond'
IF v_sum is equal to 2
Change state of arrow to .....
Decision 4 'CheckThird'
IF v_sum is equal to 3
Change state of arrow to .....
If you are navigating away from this slide with the buttons, use a standard action for the buttons (like the first decision), and put the 3 other decisions in a conditional action that you trigger by the On Enter event of the slide.