I ran into the same problem.
My solution was to use an if expression based on a variable in the title, label and expression entries.
Also I used a button to switch the status of the variable (here it is named my_cyclic) between wanted states.
The button action used is set to change the variable my_cyclic as follows: (so my_cyclic is always either 0 or 1)
=mod(my_cyclic+1,2) // my_cyclic swaps between 2 expressions, increase the number 2 to increase the size of your cyclic group.
&' using the my_cyclic variable '