These are the Page Up/Down/Left/Right buttons from the Pan/Zoom category of commands in ArcMap's Customize menu. They can be selected to customize a toolbar. I have also found them useful in ArcMap, especially the Page Left and Right buttons, since my keyboard doesn't have standard keys for those commands. I haven't yet found the same buttons available in ArcGIS Pro's Customize the Ribbon menu.
Hi Marcel, I just wanted to make sure that your main use case here is in the layout, correct? Because the Page Up, Page Down, Home and End keys work to navigate in this way in a map, just not currently in a layout...
Hope to see it for layouts and maps to add them in the quick access toolbar. I'm not fan of keyboard actions. But, what I find in trying in in map, or layout map activated, is a line displacement not a page displacement like the double arrow provide in arcmap.
Very useful to prevent missing part of the page in the annotations cleanup.
By the way, a simple improvement could be add. Just colored the last direction use. Could be useful since a project could be done in many sessions so, a colored arrow could help us the direction we use last.