VT100/TeraTerm/Putty Sending a TextMsg to the Board

Hello,

I am using TeraTerm to navigate in my wifi settings on the board. TeraTerm sends the input immediately to the board and so I can change the screens by pressing some keys. Now I would like to enter a textline without sending the text immediately(like the Arduino Serial Monitor). First I would like to enter the SSID (may I have to delete it and correct it) and then when I am finished I want to send it by pressing "enter". I know you can set up in TeraTerm the function "local line editing" On and Off. But I would like to give TeraTerm the VT100 Escape Command via serial to activate the line editing as long as I enter a text.

Something like:
Serial.write(0x1B);
Serial.print("????");

For experiments is Realterm just perfect.