Inserting an image to a field of type "rich_editor"

A field of type "rich_editor" offers the possibility to insert an image.
I you do that, you get the following menu on the screen. But I do not know how to specify the Source nor where to put the image-file.
Can I get some help?

Kind greetings, Hendrik



Staff member
the source is the URL of the image (e.g. https:// ).
The editor we use is so you can refer to their documentation in case you need further info.

I tried to do this but the image doesn't show in DaDaBIK.
If I type the URL as source directly in my browser, I clearly see the image!
Are there any restraints on size, type, ... of image?