To load a image from your local hard disk or a network resource, eg. a fileserver, open the "Insert Image" dialog and click on "Browse File System".

The following dialog will open in which you can select the appropriate image from the file system.

Once you have selected the desired image, confirm the dialog by clicking "Open". The local address of the image will now be displayed in the previous "Insert Image" dialog. At this point you can use the buttons to define different settings such as size, border size etc. and finally insert the image into edit-on Pro.
Once you have inserted an image you can still edit the image using the "Edit Image" dialog shown below. Here you can work on an image that has already been inserted.
The "Source" field shows the local address of the image as a URL. To allow saving images from your local hard drive in the final document, you should upload all images to a webDAV server directory if possible ( cf. section "Uploading new images to a webDAV server directory").
