Sеlеction of the letters
Before performing any action on the letter in a folder, You first need to note the letter. While any message is not noted, action buttons are not active.
To note messages:
1) Check the box next to the message You need
2) Choose messages to check, by clicking on the box above a column of checkboxes (on the left from Date column) and choose appropriate - all, none, read, unread or other,
3) After messages are marked, You can choose the action - delete, mark as or move to, and action will be done.
Please note that with this action, You can select only letters on the current (active) page. If You want to select all "Seen" letters from the folder while You have a few pages - in this case, we recommend You to use a search.
If you were unable to find answer for your question, please write to firstname.lastname@example.org