For testing, I tried to create a group with topics, like Forum KOD RU. The topics are cool, no need to create separate groups by topic, when you can in one. But there is one but, you can't make a topic private, let's say with friends created a group with topics, there is a topic of travel, photos and videos, chatting and so on, where everyone can write and communicate, but separately, let's say, a topic for guys, and so that in this topic there are only guys and private, and you can't see what guys write, and also separately for girls the same. Make the entrance either by pin code, or by a link on request in this topic, so that in each private topic there are administrators who would approve or refuse joining a private topic. I hope you will consider this option of private topics in a group with administrators in these private topics, and in one of the updates release a release where this will be implemented in the application. Thanks in advance. Best regards, Alexander.