No, you should only deploy SEGWs at the main entrances of your venue. Sub-unit level shops should not deploy SEGWs if they are not amongst the list of venues required to implement SEGW.
Businesses that are not eligible for SEGW devices at this point but wish to implement SEGW may download/update the SafeEntry (Business) app and use the SEGW function. If they wish to apply for the hardware SEGW device, please look out for further announcements on go.gov.sg/gateway-overview.