Modify RichTextWidth when creating ticket

[machadoa]

Hello

I would to know if it's possible to modify the width of the rich text editor directly when I create a ticket ?
It's possible to do this for the height of the rich text editor but I not finding the button for the width...

Can you help me please ?

PS : I know it's possible to change the value of the width in the sysconfig but I want to modify this parameter directly when I creating the ticket

Thanks