which phone are you using? Rotary? Or touch tone? @snuffy
Not sure about android, but apple gives you the choice.
when you say attach, it gives a choice of full or thumbnail… it’s right where the little picture is where you touch INSERT. It makes a popup that asks.
again, android phones may be different. Or.. the browser may be different. I typically use safari on apple iPhone. 99% of the time.
the two images below show where the choices are, first to insert and second, full or thumb
Hen and 3 poults in the rain yesterday. They didn't want to leave the road. Saw 35 yesterday in the rain near camp, 6 different groups. Lots of young ones!