Pictures

Here I cover two use cases:

  1. Upload pictures
  2. Resize thumbnails

Upload pictures

There are several ways to upload pictures to your server. I personally made the best experience using a tool with different names.
Uploaded Files or Browser server,  or as the developers call it gpFinder.
Think of it like MS Windows Explorer or MacOS Finder.

Click on 'Uploaded Files' in the admin menu on the top left.
Select the 'image' directory in the left area and then right-click in the right area to select 'Upload Files'

Resize Thumbnails

There are several ways to upload pictures to your server. I personally made the best experience using a tool with different names.
Uploaded Files or Browser server,  or as the developers call it gpFinder.
Think of it like MS Windows Explorer or MacOS Finder.

Click on 'Configuration' in the admin menu on the top left.

Scroll down to the 'Image' section and find 'Gallery Thumbnail Size' attribute.
Click on 'Save'
Afterwards you can re-create existing thumbnails with a click on 'Recreate All Thumbnails'