Navigating between holdings

Hi, I'm in the overview of one holding and I'd like to move to the overview of another holding. I can't see a navigation button to do that (I'm used to seeing "previous/next" or two triangles (one pointing back/one pointingt forward). It would be great to be able to move to the next holding rather than having to go back to the overview/portfolio first to then click on the next holding. I just joined so maybe it's there and I just can't see it. If it is perhaps you could make it a bit more prominent or visible?