Make it possible to pass primitive type attributes to a microflow when calling it from a button.

Based on my question https://community.mendix.com/link/questions/92268 it seems more people would like to have this.

Make it possible to make these two buttons call the same microflowX, passing a boolean, only the first will pass the boolean with value true, and the second will pass the boolean with the value false.

This will make the only current solution (having the buttons call separate microflows, which in turn call microflowX) no longer needed, and result in cleaner code.