Viewer Behavior

These options affect the Standalone Image viewer - the Opus viewer that opens in a separate window. Options that affect the Viewer Pane are configured on a separate page.

• Accelerated scrolling while dragging: If this option is on, grabbing the image with the mouse will move the image faster, such that you only have to move the mouse a small amount to scroll the entire image. If it's turned off, you'll get 1:1 movement where the part of the image you drag will stay under the mouse. Holding Ctrl while dragging will also switch modes, in case you sometimes need both.
• Check for marked pictures when viewer is opened: If this is turned on, the viewer will check if any images in the folder have already been marked in a previous session.
• Display Marked Pictures pane when a picture is marked: When you mark an image in the viewer, the Marked Pictures pane will open automatically. If this option is turned off you can still open the pane manually.
• Generate Next/Previous list: If this option is on, when you double-click on an image in a Lister to view it, Opus automatically builds a list of all the other images in that folder as well. This lets you move to the next or previous image in the folder, and to run a slideshow for all images in the folder, just by double-clicking one image. If turned off, only the image you double-clicked on will be added to the picture list. This doesn't affect what happens if you select one or more images and run the Show command on them - in that case, only the selected images will be in the picture list.
• Reset scroll position for each picture: If this option is turned on then whenever you move to the next or previous image, Opus will reset the scroll position to the top/left instead of leaving it in the current position.
• Reset zoom level for each picture: If this option is turned on then whenever you move to the next or previous image, Opus will reset the zoom level if you changed it while viewing the current image. You can choose from Fit To Page, Grow To Page or Original Size.
• Reuse existing viewer window: If this option is turned on Opus will re-use an existing viewer window when you double-click on a new file, instead of opening a new one. (If you are using the virtual desktops feature of Windows 10 and above, Opus will normally only look for existing windows on the active virtual desktop. You can change this via the advanced virtual_desktop_isolation setting.)
• Save marked images to a file collection: By default, Opus records images you mark to a file collection. This option lets you configure the name of that collection. The default, Marked Pictures\%F uses %F to insert the name of the current folder. You can also use %D to insert the current date. If you turn this option off, the viewer will use checkbox mode in the parent Lister to indicate images that you mark.
   
  • Ask for collection name: The viewer will prompt you to enter a name for the collection when you begin a new marking session.
  • Open collection when viewer is closed: After you mark some images and close the viewer, the collection will be automatically opened in a new tab. 
    
    
• Wrap-around picture lists: When the viewer's picture list contains more than one image, this option causes the viewer to wrap around to the first image in the list when you try to advance past the last image (and the same option affects slideshows).

The options listed under Standalone Viewer Slideshow Settings affect the Slideshow function of the standalone Image Viewer.

• Automatic slideshow: If this is on, the viewer will go into slideshow mode whenever it opens with more than one image in the picture list.
• Randomize slideshow: This option randomizes the order of pictures in the list when displaying a slideshow.
• Slideshow speed: This lets you control the speed in seconds between each image. You can use fractions of a second if desired.