In all switches, red dot shows the "forced" default setting on the Vega panel.
That switch albeit mentioned in the manual, and that setting is a reasonable one, before switching POMEHA, you need to anyway select the correct value based on the detected jamming type, thus there is no "forced default" red dot on the panel.
As in SAMSIM we have only noise jamming, the AS VIKL is a good selection.
Anyway, that switch has no effect in SAMSIM.