Hank, I've done some screen shot to hopefully help you post pictures
First I save them to my desk top if on my computer. Then I open the picture on desktop and rotate it 4 times, total 360* and save it back to desktop, I rename it so I will know what it is. Ex new shelf 1, new shelf 2, etc etc.
If I am going to post them from my phone, I open each picture, go to edit, rotate 4 times, total of 360*. and close the pic. I don't rename on my phone.
The reason I rotate 4 times is when I do this they never post sideways or upside down. I'm not technical enough to explain why this works, but it does for me, so I do it.
In the first screen print, see the "Attachments and other options" in Bold at the bottom, click on that
Then in the second screen print, below the "Attachments and other options" in Bold at the bottom, there is
another option, "Attach", below that is "Choose file", click that,
That will open a window for you to choose your pictures and from where, since I most always save what I'm going to post to the desktop,
I click on "desktop" and find the name of the picture I want to attach. Then in the lower left corner I click "choose".
If you on your phone you would chose the picture you want from the photos or camera.
The other reason I save to desktop is it always creates a smaller file size which is acceptable to the forum limitations. In fact, I usually go the extra mile
and send them to my computer from the phone to ensure this smaller size.
I hope I understood what you were needing and Hope this helps you.
Looking forward to seeing your cart!