You can check and participant joining a Folder in the following way.

※You can only check and change the participating members of folders in which you are a member. This rule also applies with administrator rights (even with administrator rights, you cannot operate folders in which you are not a participant).

＜Desktop＞

1. Click the human icon on the upper of All Notes area.

2. You can check and participant joining the Folder.

＜Mobile＞

1. Tap the human icon on the upper of All Notes area.

2. You can check and participant joining the Folder.