Hi Alan,

I'm pretty sure you can get what you want just by clicking on the image in the WYSIWYG, after you've inserted it, and using the Alignment buttons - left, right, centre, or justified. This sets the float of the image right or left (or removes the float) as appropriate.

You can also adjust the image size using the box around the image when it's highlighted.

Hopefully this does the job for you!

You can also experiment with using the Custom Content includelet with an image, and setting the image left/right and size in there. This is more faff but has the advantage of behaving responsively on mobile size screens.

Thanks

Joe