[Forminator Pro] Creating place holder text for Multi select list Element

Currently the only way I was able to work around this as a temp fix (actually it's not) but it's the only option I have available, was to create an extra option as the label , then the three actual choices. The problem with this is, if a user leaves it as is with the default option set as "Please choose an option" (this is what I added as my place holder text) then that becomes the option they chose and not the other options. How can you add default place holder text for this element and other elements that needs it.