The following features are available in the SG Arrival Card:-

• Individual Submission
• Group submission: Travellers arriving to Singapore in small groups can make a one-time group submission for up to a maximum of 10 people in a submission. Trip information such as flight details, last port of embarkation, expected date of arrival and departure, as well as address in Singapore will be automatically replicated for all persons in the group. Please make sure that the information you are submitting on behalf of your group is true and accurate.
• Update submission: Travellers can also update their SG Arrival Card information, provided the record has not expired. 

This information is sourced from ICA