I wanna add members of a specific telegram group to another group. But there is an issue, I have a problem with flood waiting of Telegram.
Is it possible to add whole members of the group with their user_id to my contacts then adding them to my group?
This is not possible because you can not add a member who did not save the ID in your Telegram contact.
it is  like to create a new group.
Telegram does not allow you
How can I move member from telegram group to another group