As of April 5, 2023, you can now send gifts to multiple friends at a time. To do this, click on the friends tab in the chat:
At the bottom of your friend list, click on the Send Gifts option:
Next, select the gift Charm you'd like to send to your friends. This can only be sent to your friends who are online.
If there are specific friends you'd like to send the gift to, click on the number selected option at the bottom of the screen, and you'll then be given a list of all your online friends. Uncheck the boxes next to any friends you don't want to send the gift to, and click OK. You can then select the Continue option to purchase the Charm and write a message to your friends.