Arvados

I'm logged into pirca. When I do a search, it also searches jutro and tordo. There's a lot of duplicate data across these. I want to limit my search to just pirca.

• Without reading, the naive thing I do is try to click the pirca label. It looks clickable and like it probably toggles. But instead it takes me to the front page of pirca Workbench 2, losing my place. It doesn't have to be a toggle, but what is the value of that link? Why does it disrupt my work?
• Now I read and it says "Use Site Manager to manage which clusters will be searched." I click the Site Manager link. It lists the three clusters where I'm logged it and gives me a prompt to add more. I don't see anything about selecting sites to search on this page. Unless I'm supposed to log out? But that's not obvious in general, and it's especially not obvious how to log out of jutro and tordo since I don't remember logging into them. There's no Log out button, or any explanation of what to do.
• Why do pirca and jutro have the same label color, but tordo has a different color? What do the colors mean? What's different about tordo? I feel like the colors are trying to tell me _some_thing but I have no idea what.