root/org.magiclib.combatgui.buttongroups/MagicCombatCreateButtonsAction/createButtons

createButtons

abstract fun createButtons(group: MagicCombatDataButtonGroup)

Call group.addButton in this method to add a button to the group

Example implementation:

@Override
public void createButtons(MagicCombatDataButtonGroup group){
    group.addButton("MyButton", "button data, e.g. a String", "My tooltip", false);
    // repeat for additional buttons or maybe use a loop
}