OK so to get those values from the UI:
in Client_PresentConfigureUI.lua we set them
UI.CreateLabel(horz).SetText('Attacks per Multiattack(0=Infinit) ');
InputMaxAttacks = UI.CreateNumberInputField(horz).SetSliderMinValue(0).SetSliderMaxValue(100).SetValue(initialValue);
in Client_SaveConfigureUI we retrieve them
Mod.Settings.MaxAttacks = InputMaxAttacks.GetValue();
This kind of stuff is needed in a tutorial. I'll create a tutorial on the wiki.
Edited 2017-12-07 22:13:05