Does eM Client let me delete all unwanted e-mails instantly?

Hello, I am thinking of switching from Thunderbird to eM Client and would like to know if this e-mail service allows me to delete more than one unwanted e-mail at a time instantly. Thunderbird these days only lets me delete one fast; it takes too long to delete a second e-mail and I now have 8000 in my inbox. Reply

Hello David, you can select multiple emails using the shift or ctrl key and selecting the messages using your pointer and remove the instantly using shift+delete to avoid moving the items to trash but rather removing them immediately from the server.

Wen I remove mails in the “Unwanted E-Mail” Always there will be 4 Mails left? How can I empty that box?