I can't delete the words

[SirArevalo]

Hi.i love this game so much,but i have a question,why when i want to enter to another server i can't delete the words,i have a capture look,thanks for read,and if you can help me pls,do it.

[sethiemeboi]

first, you put your mouse on the line where the server name is.
then, you press and hold the left arrow key until the cursor is at the end.
finally, press backspace until its all gone.

simple enough?