Hi Garion,
Are you trying to hide the image when it is not uploaded?
You can check if it has contents in the condition for visibility like below.
Garion,
Unfortunately, I think you’ll need to put an attribute on your PlannedActivity entity to indicate if any associated images have contents. You can then update this attribute (either via microflow/page activity/event handler) when images are uploaded. Finally, you can use this in your document template to control visibility.
Not the most elegant solution, but it should work.
Mike