Basic Zoom function when composing mail

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If you just want to increase the whole window all you have to do is go to View drop down select zoom in, once you do that if you want zoom in more there will be in the search bar - on Google Chrome - a zoom + or - or reset back to normal. If you want to increase text size just use text to select. You have to use mouse clicks and I realize you want to use keyboard but this will work.

So are you saying using command shift + or - isn't working for you when you're composing mail? Are you typing it out then highlighting it, using the above commands and it isn't doing either one of them? I just tried it in mine and it works just fine so I'm trying to figure out what it is that it's not doing for you.

You don't have to keep highlighting as you type, you just type any letter say R, highlight that and increase it to the size you want then just click once and everything else you type will be same size without having to highlight it each time. If you're wanting to read it in large size but send it in smaller size you would of course have to highlight all of it and make it smaller again.