You can create rules to move incoming email from a specific sender to your folder of choice.
To create a rule, open any email from the sender and click on "Create a rule". Select the destination folder from the drop-down menu and click "Save". Now, any future incoming emails from the sender will be moved automatically to the selected folder. You can also create a new folder by selecting "a new folder" at the top of the folder list.
If you delete the destination folder, the system will automatically re-create it.
To edit the destination folder, open any email from the sender, click on "Edit rule", select the new destination folder and save.
To delete a rule, open any email from the sender, click on "Edit rule", select "Inbox" as the new destination folder and save.