Delete PM

We need to implement posibility of deleting PMs.

Deleting from lists of messages

Every PM has checkbox and could be checked.
Checkboxes are in their own column.
Title of checkbox column has checkbox too.

• If user checks it, all PMs on this page will be checked. Previous state of checkboxes are ignored.
• If user unchecks it, all PMs on this page will be unchecked. Previous state of checkboxes are ignored.

After user checked PMs he/she clicks "Delete" button in right-bottom and checked PMs are deleting after confirmation.
PMs are deleting only for this User's account

Same behavior must be implemented on Inbox, Outbox and Draft pages.

Deleting from reading mode

While user reads PM he/she could press "Delete" button in bottom-left and message will be deleted after confirmation.

Some suggestions

Instead of text buttons could contain icons describing their action.
If nothing checked, Delete button is disabled.