Hi kingboards,
You can choose the group instead of choosing each person in the group as long as the group has been added to the Contacts app. You can view more information on group text messages and how to send them here: Send a group text message on your iPhone, iPad, or iPod touch. The steps to get it done are also listed below.
"Send a group text message
- Open Messages and tap the Compose button
. - Enter the names or tap the Add button
to add people from your contacts. - Type your message, then tap the Send button
.
To send a group MMS message on an iPhone, make sure MMS Messaging is turned on. Go to Settings > Messages and turn on MMS Messaging. If you don’t see an option to turn on MMS Messaging or Group Messaging, contact your carrier to see if your plan supports Group MMS Messaging.
With iOS 15 and iPadOS 15, photos, links, and other content that are sent within the group message will appear in the Shared with You section of the corresponding content apps. If you don't want to see the photos and other content in Shared with You, go to the group message, tap the top of the thread, then turn off Show in Shared with You."
Best regards.