Thank you for adding choice of None signature while composing message.
BUT - it is very needed also to make NONE as default signature at settings, because when I compose sms - mainly I do not use signature and just sometimee need to add it. Ordinary when I am writting first time to new person.
But if there is no None as default - than I always have to remember remove default signature and set it to None. Or I have to go to settings to set adding of signatures.
Please add this small feature.
Thank you!