I used "copy image" from a website and then pasted the image onto the stimulus area. The image was larger than I wanted -- it went off the screen a bit, so I wanted to alter the display dimensions. I selected the image in the editor and clicked the "Embed Image" tool for the RCE and it brings up the "Import Content" popup window, prompting for image selection/drag-drop and Alt text. It doesn't recognize that I wish to change the properties of the existing image.
In contrast, working with a content page and following the same steps, the Embed Image tool provides the "Insert/Edit Image" popup window with Alt text and dimension attributes for editing that image.
As a second option, I know enough HTML to be able to set the dimensions of the image in the IMG tag, but this RCE doesn't offer an HTML option.
It does, however, appear that I can drag the selection handles on the image, itself, to resize. However, I am still not able to add Alt text.
Would this be a bug report or an enhancement request?