Sample model : multi_slider.mdl
The most common use for multi-sliders is to sum all constants to a value.
The sketch below shows a constant "allocation percentage" which is subscripted by "region". During SyntheSim, all sliders will sum to 100.
Options
There are limited options available for the multi-slider. "Behaviour" lets you choose the mode (show sliders or link to a value). There is a section lower in the options where you can add/remove constants.