Hi Seb,if you intend to use HTML mode in Wysiwyg, you can try putting e.g. HTML code like this:
In the Wiki markup to enter when image selected from "file gallery manager" of your File Gallery (
tiki-list_file_gallery.php?edit_mode=1&galleryId=1 ) to be inserted instead of the default wiki markup.
Luci, my savior... this is exactly the hidden setting I was looking for.
I manage to have it working by using the following code (in the File Gallery option you pointed):
<img src="./tiki-download_file.php?fileId=%fileId%&display" width="640" />
Thanks so much. I will test further but it seems to do what I wanted.