To change a big group in imo, you can follow
these steps:
1. Open the imo app on your device and navigate
to the big group that you want to change.
2. After entering the group chat, click "..." in the
upper right corner to enter the group settings.
3. Depending on the specific features available
in imo, you may be able to change the group
name, group avatar, group announcement and
group description, choose group tag, group
language, group style and modify other
group-related settings.
4. Make the desired changes to the group, such
as updating the group name, changing the group
avatar, or modifying the group description.
5. Once you have made the changes, save the
settings and exit the group settings menu.
Please note that the specific steps may vary
slightly depending on the version of the imo app
you are using and the platform
(iOS, Android, etc.).
If you encounter any difficulties, you can refer
to the imo app's help documentation or
contact their support for further assistance.