When you select to insert an image a dialog box will appear:
Clicking the folder icon will open the Responsive Filemanager to upload the image, then will return you to provide a description of the image and to specify the dimensions of the image:
The image will appear in the HTML editor box:
And appear directly on the page:
1) Start by clicking the Images tab near the center top of the page:
2) Then browse and upload your file (note files larger than 250 KB will simply fail to upload due to exceeding the
maximium size)
3) After uploading your image, copy the 'hfig' or 'dfig' line into the body of the question where you want the image to be
4) Your image will appear in the problem; the Preview on the right hand side of the page will show you how it looks!